Section 110-A. Deduction of group plan insurance or medicare premiums from benefits

Notwithstanding anything to the contrary contained in section
  one hundred ten of this act, the comptroller  is  hereby  authorized  to
  deduct  from the retirement allowance of any retired member, such amount
  as the retired member may specify in writing filed with the  comptroller
  for  the  payment  of  any insurance premiums written on the group plan,
  covering only such insurance in which the employer as defined in section
  two of this act contributes, and to transmit the sums so deducted to the
  company carrying such insurance or  its  authorized  represenative.  The
  comptroller   is  further  authorized  to  deduct  from  the  retirement
  allowance of any retired member such amount as the  retired  member  may
  specify  in  writing  filed  with the comptroller for the payment of any
  insurance premiums due  for  medicare,  and  to  transmit  the  sums  so
  deducted  to  the  agency  for  the  federal  government  authorized  to
  administer the medicare program. Any such written authorization  may  be
  withdrawn  by such retired member at any time upon filing notice of such
  withdrawal with the comptroller.