<DOCUMENT>
<TYPE>EX-99.(S)(2)
<SEQUENCE>17
<FILENAME>b56372a1exv99wxsyx2y.txt
<DESCRIPTION>POWER OF ATTORNEY DATED APRIL 29, 2005
<TEXT>
<PAGE>
                                                                  Exhibit (s)(2)

                                POWER OF ATTORNEY

     We, the undersigned officers and Trustees of Eaton Vance Tax-Managed Global
Buy-Write Opportunities Fund, a Massachusetts business trust, do hereby
severally constitute and appoint Alan R. Dynner, Thomas E. Faust Jr., James B.
Hawkes or James L. O'Connor, or any of them, to be true, sufficient and lawful
attorneys, or attorney for each of us, to sign for each of us, in the name of
each of us in the capacities indicated below, Registration Statements and any
and all amendments (including post-effective amendments) to such Registration
Statements on Form N-2 filed by Eaton Vance Tax-Managed Global Buy-Write
Opportunities Fund with the Securities and Exchange Commission in respect of any
class of shares of beneficial interest and other documents and papers relating
thereto.

     IN WITNESS WHEREOF we have hereunto set our hands on the dates set opposite
our respective signatures.

<TABLE>
<CAPTION>
           Signature              Title         Date
           ---------              -----         ----
<S>                              <C>       <C>


/s/ Benjamin C. Esty             Trustee   April 29, 2005
------------------------------
Benjamin C. Esty


Ralph F. Verni                   Trustee   April 29, 2005
------------------------------
Ralph F. Verni
</TABLE>

<PAGE>

                               POWER OF ATTORNEY

     We, the undersigned officers and Trustees of Eaton Vance Tax-Managed Global
Buy-Write Opportunities Fund, a Massachusetts business trust, do hereby
severally constitute and appoint Alan R. Dynner, Thomas E. Faust Jr., James B.
Hawkes or James L. O'Connor, or any of them, to be true, sufficient and lawful
attorneys, or attorney for each of us, to sign for each of us, in the name of
each of us in the capacities indicated below, Registration Statements and any
and all amendments (including post-effective amendments) to such Registration
Statements on Form N-2 filed by Eaton Vance Tax-Managed Global Buy-Write
Opportunities Fund with the Securities and Exchange Commission in respect of any
class of shares of beneficial interest and other documents and papers relating
thereto.

     IN WITNESS WHEREOF we have hereunto set our hands on the dates set opposite
our respective signatures.

<TABLE>
<CAPTION>
           Signature              Title         Date
           ---------              -----         ----
<S>                              <C>       <C>


Benjamin C. Esty                 Trustee   April 29, 2005
------------------------------
Benjamin C. Esty


/s/ Ralph F. Verni               Trustee   April 29, 2005
------------------------------
Ralph F. Verni
</TABLE>
</TEXT>
</DOCUMENT>
