Section 115. Teachers employed in institutions for the deaf, mute and blind

Notwithstanding the provisions of sections six and seven of chapter five
  hundred  and sixty-eight of the laws of nineteen hundred twenty-one, the
  provisions of chapter four hundred and forty-one of the laws of nineteen
  hundred ten and of chapter six hundred  and  fourteen  of  the  laws  of
  nineteen  hundred  fifteen,  so  far  as  the  same  shall relate to the
  retirement of teachers employed in institutions for the  deaf  and  mute
  and  the blind, receiving state pupils whose instruction and support are
  paid for by  the  state,  the  procedure  for  the  retirement  of  such
  teachers,  the amount of allowances to be paid to them on retirement and
  the time and manner of payment of such  allowances,  shall  continue  in
  full  force and effect until such teachers are transferred to some other
  retirement system and provision is made for  their  retirement  and  the
  payment of allowances to them.