UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13G

                   UNDER THE SECURITIES EXCHANGE ACT OF 1934

                              (AMENDMENT NO. 4)*

                         Surgical Laser Technologies
                         ---------------------------
                               (Name of Issuer)

                                    Common
                        ------------------------------
                        (Title of Class of Securities)

                                  868819103
                         ----------------------------
                                 (CUSIP Number)

Check the following box if a fee is being paid with this statement ___.  (A fee
is not required only if the filing person:  (1) has a previous statement on
file reporting beneficial ownership of more than five percent of the class of
securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7).

*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 the
disclosures provided in a prior cover page.

The information required in 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).
                                                               Page 1 of 3 pages



CUSIP NO. 868819103
13G
1   NAME OF REPORTING PERSON
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        State of Wisconsin Investment Board 

           39-6006423

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *
                                                               (a) ____
           Not Applicable                                      (b) ____

3   SEC USE ONLY


________________________________________________________________________________
4   CITIZENSHIP OR PLACE OF ORGANIZATION

             Madison, Wisconsin

                     5  SOLE VOTING POWER
    NUMBER OF                   885,000
     SHARES          ________________________________________________________
  BENEFICIALLY       6    SHARED VOTING POWER
    OWNED BY                 Not Applicable
      EACH           ________________________________________________________
   REPORTING         7    SOLE DISPOSITIVE POWER
    PERSON                      885,000
     WITH            ________________________________________________________
                     8    SHARED DISPOSITIVE POWER
                             Not Applicable

9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          885,000

10  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *

11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          9.71%

12  TYPE OF REPORTING PERSON *

          EP (Public Pension Fund)

                     * SEE INSTRUCTION BEFORE FILLING OUT!
Page 2 of 3 pages




ITEM 1.  ISSUER
         (a) Surgical Laser Technologies
         (b) 200 Cresson Blvd., P.O. Box 880
             Oaks, PA.

ITEM 2.  PERSON FILING
         (a) State of Wisconsin Investment Board
         (b) P.O. Box 7842
             Madison, WI 53707
         (c) Wisconsin State Agency
         (d) See cover page
         (e) See cover page

ITEM 3.  THIS STATEMENT IS FILED PURSUANT TO 13D-1(B) OR 13D-2(B) AND THE STATE
OF WISCONSIN INVESTMENT BOARD IS A GOVERNMENT AGENCY WHICH MANAGES PUBLIC 
PENSION FUNDS SUBJECT TO PROVISIONS COMPARABLE TO ERISA.

ITEM 4. OWNERSHIP
         (a) See Row 9 on Page 2
         (b) See Row 11 on Page 2
         (c) The State of Wisconsin Investment Board retains sole voting and
             dispositive power for all shares.

ITEM 5.  IF THIS STATEMENT IS BEING FILED TO REPORT THE FACT THAT AS OF THE
DATE HEREOF THE REPORTING PERSON HAS CEASED TO BE THE BENEFICIAL OWNER OF MORE 
THAN FIVE PERCENT OF THE CLASS OF SECURITIES, CHECK THE FOLLOWING ____.

ITEM 6.  NOT APPLICABLE

ITEM 7.  NOT APPLICABLE

ITEM 8.  NOT APPLICABLE

ITEM 9.  NOT APPLICABLE

ITEM 10. CERTIFICATION

    By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired in the ordinary course of
business and were not acquired for the purpose of and do not have the effect of
changing or influencing the control of the issuer of such securities and were
not acquired in connection with or as a participant in any transaction having
such purposes or effect.

SIGNATURE

    After reasonable inquiry to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

            
Date        February 13, 1995             
            ----------------------------- 
                                          
Signature   George Natzke                 
            ----------------------------- 
                                          
Name/Title  George Natzke, Administrator  
            ----------------------------- 
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