=============================================================================
                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549
                                 SCHEDULE 13D
                Under the Securities and Exchange Act of 1934



                        Advanced Medical Optics, Inc.
               ------------------------------------------------
                               (Name of Issuer)

                    Common Stock, $0.01 par value per share
                ------------------------------------------------
                        (Title of Class of Securities)

                                  00763M108
                ------------------------------------------------
                               (CUSIP Number)

                           Allison Bennington, Esq.
                              ValueAct Capital
                       435 Pacific Avenue, Fourth Floor
                          San Francisco, CA  94133
                               (415) 362-3700
                ------------------------------------------------
                 (Name, address and telephone number of Person
                Authorized to Receive Notices and Communications)

                         Christopher G. Karras, Esq.
                                 Dechert LLP
                                  Cira Centre
                                2929 Arch Street
                          Philadelphia, PA 19104-2808
                                (215) 994-4000

                                  May 1, 2007
                ------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
schedule because of 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the
following box [ ].

Note:  Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 240.13d-7 for other
parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

This information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).
=============================================================================


                                SCHEDULE 13D
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 2 of 19
-----------------------------------------------------------------------------
1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE
   PERSON (entities only)

   ValueAct Capital Master Fund, L.P.
-----------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                  (a) [X]
                                                                      (b) [ ]
-----------------------------------------------------------------------------
3. SEC USE ONLY

-----------------------------------------------------------------------------
4. SOURCE OF FUNDS (See Instructions)*

   WC*
-----------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
   PURSUANT TO ITEMS 2(d) or 2(e)                                         [ ]
-----------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION

   British Virgin Islands
-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER
                        0
   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER
   BENEFICIALLY         3,932,269**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        3,932,269**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    3,932,269**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

   6.6%
-----------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON

    PN
-----------------------------------------------------------------------------
*See Item 3
**See Item 2 and 5


                                SCHEDULE 13D
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 3 of 19
-----------------------------------------------------------------------------
1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE
   PERSON (entities only)

   ValueAct Capital Master Fund III, L.P.
-----------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                  (a) [X]
                                                                      (b) [ ]
-----------------------------------------------------------------------------
3. SEC USE ONLY

-----------------------------------------------------------------------------
4. SOURCE OF FUNDS (See Instructions)*

   WC*
-----------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
   PURSUANT TO ITEMS 2(d) or 2(e)                                         [ ]
-----------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION

   British Virgin Islands
-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER
                        0
   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER
   BENEFICIALLY         460,966**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        460,966**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    460,966**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

   Less than 1%
-----------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON

    PN
-----------------------------------------------------------------------------
*See Item 3
**See Item 2 and 5



                                SCHEDULE 13D
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 4 of 19
----------------------------------------------------------------------------
1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE
   PERSON (entities only)

   VA Partners, L.L.C.
-----------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                  (a) [X]
                                                                      (b) [ ]
-----------------------------------------------------------------------------
3. SEC USE ONLY

-----------------------------------------------------------------------------
4. SOURCE OF FUNDS*

   00*
-----------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
   PURSUANT TO ITEMS 2(d) or 2(e)                                         [ ]
-----------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION

   Delaware
-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER
                        0
   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER
   BENEFICIALLY         3,932,269**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        3,932,269**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    3,932,269**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    6.6%
-----------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON

    00 (LLC)
-----------------------------------------------------------------------------
*See Item 3
**See Item 2 and 5


                                SCHEDULE 13D
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 5 of 19
----------------------------------------------------------------------------
1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE
   PERSON (entities only)

   VA Partners III, L.L.C.
-----------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                  (a) [X]
                                                                      (b) [ ]
-----------------------------------------------------------------------------
3. SEC USE ONLY

-----------------------------------------------------------------------------
4. SOURCE OF FUNDS*

   00*
-----------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
   PURSUANT TO ITEMS 2(d) or 2(e)                                         [ ]
-----------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION

   Delaware
-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER
                        0
   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER
   BENEFICIALLY         460,966**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        460,966**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    460,966**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    Less than 1%
-----------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON

    00 (LLC)
-----------------------------------------------------------------------------
*See Item 3
**See Item 2 and 5


                                SCHEDULE 13D
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 6 of 19
----------------------------------------------------------------------------
1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE
   PERSON (entities only)

   ValueAct Capital Management, L.P.
-----------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                  (a) [X]
                                                                      (b) [ ]
-----------------------------------------------------------------------------
3. SEC USE ONLY

-----------------------------------------------------------------------------
4. SOURCE OF FUNDS*

   00*
-----------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
   PURSUANT TO ITEMS 2(d) or 2(e)                                         [ ]
-----------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION

   Delaware
-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER
                        0
   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER
   BENEFICIALLY         4,393,235**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        4,393,235**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,393,235**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    7.3%
-----------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON

    PN
-----------------------------------------------------------------------------
*See Item 3
**See Item 2 and 5


                                SCHEDULE 13D
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 7 of 19
----------------------------------------------------------------------------
1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE
   PERSON (entities only)

   ValueAct Capital Management, LLC
-----------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                  (a) [X]
                                                                      (b) [ ]
-----------------------------------------------------------------------------
3. SEC USE ONLY

-----------------------------------------------------------------------------
4. SOURCE OF FUNDS*

   00*
-----------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
   PURSUANT TO ITEMS 2(d) or 2(e)                                         [ ]
-----------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION

   Delaware
-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER
                        0
   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER
   BENEFICIALLY         4,393,235**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        4,393,235**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,393,235**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    7.3%
-----------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON

    00 (LLC)
-----------------------------------------------------------------------------
*See Item 3
**See Item 2 and 5


                                SCHEDULE 13D
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 8 of 19
-----------------------------------------------------------------------------
1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE
   PERSON (entities only)

   Jeffrey W. Ubben
---------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                  (a) [X]
                                                                      (b) [ ]
-----------------------------------------------------------------------------
3. SEC USE ONLY

---------------------------------------------------------------------------
4. SOURCE OF FUNDS*

   00*
-----------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
   PURSUANT TO ITEMS 2(d) or 2(e)                                         [ ]
-----------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION

   United States
-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER
                        0
   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER
   BENEFICIALLY         4,393,235**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        4,393,235**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,393,235**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    7.3%
-----------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON

    IN
-----------------------------------------------------------------------------
*See Item 3
**See Item 2 and 5


                                SCHEDULE 13D
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 9 of 19
-----------------------------------------------------------------------------
1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE
   PERSON (entities only)

   George F. Hamel, Jr.
---------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                  (a) [X]
                                                                      (b) [ ]
-----------------------------------------------------------------------------
3. SEC USE ONLY

-----------------------------------------------------------------------------
4. SOURCE OF FUNDS*

   00*
-----------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
   PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
-----------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION

   United States
-----------------------------------------------------------------------------
                   7.  SOLE VOTING POWER
                        0
   NUMBER OF       ----------------------------------------------------------
   SHARES          8.  SHARED VOTING POWER
   BENEFICIALLY         4,393,235**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH     9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        4,393,235**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,393,235**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    7.3%
-----------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON

    IN
-----------------------------------------------------------------------------
*See Item 3
**See Item 2 and 5


                                SCHEDULE 13D
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 10 of 19
-----------------------------------------------------------------------------
1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE
   PERSON (entities only)

   Peter H. Kamin
-----------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                  (a) [X]
                                                                      (b) [ ]
---------------------------------------------------------------------------
3. SEC USE ONLY

-----------------------------------------------------------------------------
4. SOURCE OF FUNDS*

   00*
-----------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
   PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
-----------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION

   United States
-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER
                        0
   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER
   BENEFICIALLY         4,393,235**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        4,393,235**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,393,235**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    7.3%
-----------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON

    IN
-----------------------------------------------------------------------------
*See Item 3
**See Item 2 and 5


--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 11 of 19
-----------------------------------------------------------------------------

Item 1.     Security and Issuer

       This Schedule 13D relates to the Common Stock, par value $0.01 per
share (the "Common Stock"), of Advanced Medical Optics, Inc., a Delaware
corporation (the "Issuer").  The address of the principal executive offices
of the Issuer is 1700 E. St. Andrew Place, Santa Ana, California 92705.

Item 2.     Identity and Background

      This statement is filed jointly by (a) ValueAct Capital Master Fund,
L.P. ("ValueAct Master Fund"), (b) ValueAct Capital Master Fund III, L.P.
("ValueAct Master Fund III"), (c) VA Partners, LLC ("VA Partners"), (d) VA
Partners III, LLC ("VA Partners III"), (e) ValueAct Capital Management, L.P.
("ValueAct Management L.P."), (f) ValueAct Capital Management, LLC ("ValueAct
Management LLC"), (g) Jeffrey W. Ubben, (h) George F. Hamel, Jr. and (i)
Peter H. Kamin (collectively, the "Reporting Persons").

      ValueAct Master Fund and ValueAct Master Fund III are limited
partnerships organized under the laws of the British Virgin Islands.  Each
has a principal business address of 435 Pacific Avenue, Fourth Floor, San
Francisco, CA 94133.

      VA Partners is a Delaware limited liability company, the principal
business of which is to serve as the General Partner to ValueAct Master Fund.
VA Partners III is a Delaware limited liability company, the principal
business of which is to serve as the General Partner to ValueAct Master Fund
III.  Each has a principal business address of 435 Pacific Avenue, Fourth
Floor, San Francisco, CA 94133.

      ValueAct Management L.P. is a Delaware limited partnership which
renders management services to ValueAct Master Fund and ValueAct Master Fund
III.  ValueAct Management LLC is a Delaware limited liability company, the
principal business of which is to serve as the General Partner to ValueAct
Management L.P.  Each has a principal business address of 435 Pacific Avenue,
Fourth Floor, San Francisco, CA 94133.

      (a), (b) and (c). Messrs. Ubben, Hamel and Kamin are each managing
members, principal owners and controlling persons of VA Partners, VA Partners
III and ValueAct Management LLC, and such activities constitute their
principal occupations.  Such individuals are sometimes collectively referred
to herein as the  "Managing Members" or individually as a "Managing Member".
Each Managing Member is a United States citizen and has a principal business
address of 435 Pacific Avenue, Fourth Floor, San Francisco, CA 94133.

      (d) and (e). None of the entities or persons identified in this Item 2
has during the past five years been convicted of any criminal proceeding
(excluding traffic violations or similar misdemeanors), nor been a party to a
civil proceeding of a judicial or administrative body of competent judgment,
decree or final order enjoining future violations of, or prohibiting or
mandating activities subject to, federal or state securities laws or finding
any violation with respect to such laws.






--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 12 of 19
-----------------------------------------------------------------------------

Item 3.     Source and Amount of Funds or Other Consideration

           The source of funds used for the purchase of the Issuer's
securities was the working capital of ValueAct Master Fund and ValueAct
Master Fund III. The aggregate funds used by these Reporting Persons to make
the purchases were $78,464,870.43 and $9,403,854.06.

Item 4.     Purpose of Transaction

      The Reporting Persons have acquired the Issuer's Common Stock for
investment purposes, and such purchases have been made in the Reporting
Persons' ordinary course of business.

      In pursuing such investment purposes, the Reporting Persons may further
purchase, hold, vote, trade, dispose or otherwise deal in the Common Stock at
times, and in such manner, as they deem advisable to benefit from changes in
market prices of such Common Stock, changes in the Issuer's operations,
business strategy or prospects, or from sale or merger of the Issuer.  To
evaluate such alternatives, the Reporting Persons will routinely monitor the
Issuer's operations, prospects, business development, management, competitive
and strategic matters, capital structure, and prevailing market conditions,
as well as alternative investment opportunities, liquidity requirements of
the Reporting Persons and other investment considerations.  Consistent with
its investment research methods and evaluation criteria, the Reporting
Persons may discuss such matters with management or directors of the Issuer,
other shareholders, industry analysts, existing or potential strategic
partners or competitors, investment and financing professionals, sources of
credit and other investors.  Such factors and discussions may materially
affect, and result in, the Reporting Persons' modifying their ownership of
Common Stock, exchanging information with the Issuer pursuant to appropriate
confidentiality or similar agreements, proposing changes in the Issuer's
operations, governance or capitalization, or in proposing one or more of the
other actions described in subsections (a) through (j) of Item 4 of Schedule
13D.

      The Reporting Persons reserve the right to formulate other plans and/or
make other proposals, and take such actions with respect to their investment
in the Issuer, including any or all of the actions set forth in paragraphs
(a) through (j) of Item 4 of Schedule 13D, or acquire additional Common Stock
or dispose of all the Common Stock beneficially owned by them, in the public
market or privately negotiated transactions.  The Reporting Persons may at
any time reconsider and change their plans or proposals relating to the
foregoing.

Item 5.		Interest in Securities of the Issuer

(a) and (b).  Set forth below is the beneficial ownership of
shares of Common Stock of the Issuer for each person named in Item 2.  Shares
reported as beneficially owned by ValueAct Master Fund and ValueAct Master
Fund III are also reported as beneficially owned by (i) ValueAct Management
L.P. as the manager of each such investment partnership, (ii) ValueAct
Management LLC, as General Partner of ValueAct Management L.P. and (iii) the



--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 13 of 19
-----------------------------------------------------------------------------

Managing Members as controlling persons of VA Partners, VA Partners III and
ValueAct Management LLC.  Shares reported as beneficially owned by ValueAct
Master Fund are also reported as beneficially owned by VA Partners, as
General Partner of ValueAct Master Fund.  Shares reported as beneficially
owned by ValueAct Master Fund III are also reported as beneficially owned by
VA Partners III, as General Partner of ValueAct Master Fund III.  VA
Partners, VA Partners III, ValueAct Management LLC and the Managing Members
also, directly or indirectly, may own interests in one or more than one of
the partnerships from time to time.  Unless otherwise indicated below, by
reason of such relationships each of the ValueAct Master Fund and ValueAct
Master Fund III is reported as having shared power to vote or to direct the
vote, and shared power to dispose or direct the disposition of, such shares
of Common Stock, with VA Partners (only with respect to ValueAct Master
Fund), VA Partners III (only with respect to ValueAct Master Fund III),
ValueAct Management L.P., ValueAct Management LLC and the Managing Members.

        As of the date hereof, ValueAct Master Fund is the beneficial owner
of 3,932,269 shares of Common Stock, representing approximately 6.6% of the
Issuer's outstanding Common Stock (which shares may also be deemed to be
beneficially owned by VA Partners).  As of the date hereof, ValueAct Master
Fund III is the beneficial owner of 460,966 shares of Common Stock,
representing less than 1% of the Issuer's outstanding Common Stock (which
shares may also be deemed to be beneficially owned by VA Partners III).

        ValueAct Management L.P., ValueAct Management LLC and the Managing
Members may each be deemed the beneficial owner of an aggregate of 4,393,235
shares of Common Stock, representing approximately 7.3% of the Issuer's
outstanding Common Stock.

        All percentages set forth in this Schedule 13D are based upon the
Issuer's reported 59,940,915 outstanding shares of Common Stock as
reported in the Issuer's Form 10-Q for the quarterly period ended March 30,
2007.

(c) During the sixty (60) days preceding the date of this
report, the Reporting Persons purchased the following shares of Common Stock
in the open market:

Reporting Person          Trade Date           Shares            Price/Share
----------------          ----------          ---------          -----------
ValueAct Master Fund      03/12/2007           133,500             $38.44
                          03/13/2007           133,500             $37.98
                          03/14/2007            45,400             $37.57
                          03/16/2007            89,000             $37.72
                          03/21/2007            22,300             $37.95
                          03/21/2007            44,500             $37.99
                          03/22/2007            66,800             $38.00
                          03/23/2007            44,500             $38.00
                          04/26/2007            79,744             $41.17
                          04/26/2007             9,256             $41.07
                          05/01/2007            65,860             $40.31
                          05/01/2007            44,500             $40.31
                          05/02/2007            66,750             $41.21
                          05/02/2007           111,250             $41.24
                          05/03/2007            89,000             $41.32

--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 14 of 19
-----------------------------------------------------------------------------

Reporting Person          Trade Date           Shares            Price/Share
----------------          ----------          ---------          -----------

                          05/03/2007            66,750             $41.28
                          05/04/2007           145,426             $41.14
                          05/07/2007            78,053             $41.38
                          05/07/2007            51,265             $41.44
                          05/08/2007            90,000             $41.37
                          05/08/2007            81,990             $41.37
                          05/09/2007            29,430             $41.47
                          05/09/2007            90,000             $41.47
                          05/10/2007            58,860             $41.23
                          05/10/2007           202,500             $41.01
                          05/10/2007             9,000             $40.85

ValueAct Master Fund III  03/12/2007            16,500             $38.44
                          03/13/2007            16,500             $37.98
                          03/14/2007             5,600             $37.57
                          03/16/2007            11,000             $37.72
                          03/21/2007             2,700             $37.95
                          03/21/2007             5,500             $37.99
                          03/22/2007             8,200             $38.00
                          03/23/2007             5,500             $38.00
                          04/26/2007             9,856             $41.17
                          04/26/2007             1,144             $41.07
                          05/01/2007             5,500             $40.31
                          05/01/2007             8,140             $40.31
                          05/02/2007            13,750             $41.24
                          05/02/2007             8,250             $41.21
                          05/03/2007            11,000             $41.32
                          05/03/2007             8,250             $41.28
                          05/04/2007            17,974             $41.14
                          05/07/2007             9,647             $41.38
                          05/07/2007             6,335             $41.44
                          05/08/2007             9,110             $41.37
                          05/08/2007            10,000             $41.37
                          05/09/2007            10,000             $41.47
                          05/09/2007             3,270             $41.47
                          05/10/2007             6,540             $41.23
                          05/10/2007            22,500             $41.01
                          05/10/2007             1,000             $40.85


         (d) and (e)  Not applicable.



--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 15 of 19
-----------------------------------------------------------------------------

Item 6.     Contracts, Arrangements, Understandings or Relationships with
            Respect to Securities of the Issuer

       Other than as described elsewhere in this Report and as previously
reported, the Reporting Persons have no understandings, arrangements,
relationships or contracts relating to the Issuer's Common Stock which are
required to be described hereunder.

Item 7.		Material to Be Filed as Exhibits

(1)	Joint Filing Agreement.


--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 16 of 19
-----------------------------------------------------------------------------
                                  SIGNATURE
         After reasonable inquiry and to the best of his knowledge and
belief, the undersigned certifies that the information set forth in this
statement is true, complete and correct.

                              POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below on this Schedule 13D hereby constitutes and appoints Jeffrey W. Ubben,
George F. Hamel, Jr. and Peter H. Kamin, and each of them, with full power to
act without the other, his or its true and lawful attorney-in-fact and agent,
with full power of substitution and resubstitution, for him or it and in his
or its name, place and stead, in any and all capacities (until revoked in
writing) to sign any and all amendments to this Schedule 13D, and to file the
same, with all exhibits thereto and other documents in connection therewith,
with the Securities and Exchange Commission, granting unto said attorneys-in-
fact and agents, and each of them, full power and authority to do and perform
each and every act and thing requisite and necessary fully to all intents and
purposes as he or it might or could do in person, thereby ratifying and
confirming all that said attorneys-in-fact and agents or any of them, or
their or his substitute or substitutes, may lawfully do or cause to be done
by virtue hereof.

                              ValueAct Capital Master Fund L.P., by
                              VA Partners, L.L.C., its General Partner

                              By:     /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member

                              ValueAct Capital Master Fund III L.P., by
                              VA Partners III, L.L.C., its General Partner

                              By:     /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member

                              VA Partners, L.L.C.

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member


                              VA Partners III, L.L.C.

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member





--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 17 of 19
-----------------------------------------------------------------------------

                               ValueAct Capital Management, L.P., by
                               ValueAct Capital Management, LLC its
                               General Partner

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member


                               ValueAct Capital Management, LLC

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member


                              By:    /s/  Jeffrey W. Ubben
                                --------------------------------------
Dated:  May 11, 2007            Jeffrey W. Ubben, Managing Member


                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member


                              By:    /s/  Peter H. Kamin
                                --------------------------------------
Dated:  May 11, 2007            Peter H. Kamin, Managing Member



 
--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 18 of 19
-----------------------------------------------------------------------------
                                 Exhibit 1
                         JOINT FILING UNDERTAKING
The undersigned parties hereby agree that the Schedule 13D filed herewith
(and any amendments thereto) relating to the Common Stock of Advanced Medical
Optics, Inc. is being filed jointly on behalf of each of them with the
Securities and Exchange Commission pursuant to Section 13(d) of the
Securities Exchange Act of 1934, as amended.

                              ValueAct Capital Master Fund L.P., by
                              VA Partners, L.L.C., its General Partner

                              By:     /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member

                              ValueAct Capital Master Fund III L.P., by
                              VA Partners III, L.L.C., its General Partner

                              By:     /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member

                              VA Partners, L.L.C.

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member


                              VA Partners III, L.L.C.

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member



                               ValueAct Capital Management, L.P.,
                               by, ValueAct Capital Management, LLC
                               its General Partner

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member


                               ValueAct Capital Management, LLC

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member


--------------------------                          -------------------------
CUSIP NO. 00763M108                                             Page 19 of 19
-----------------------------------------------------------------------------

                              By:    /s/  Jeffrey W. Ubben
                                --------------------------------------
Dated:  May 11, 2007            Jeffrey W. Ubben, Managing Member


                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  May 11, 2007            George F. Hamel, Jr., Managing Member


                              By:    /s/  Peter H. Kamin
                                --------------------------------------
Dated:  May 11, 2007            Peter H. Kamin, Managing Member