(A) Except as provided in section 3309.673 of the Revised Code, the granting of a retirement allowance, annuity, pension, or other benefit to any person pursuant to action of the school employees retirement board vests a right in such person, so long as the person remains the recipient of any of the funds established by section 3309.60 of the Revised Code, to receive such retirement allowance, annuity, pension, or benefit. Such right shall also be vested with equal effect in the recipient of a grant heretofore made from any of the funds named in section 3309.60 of the Revised Code.
(B) This section does not affect the retirement board's authority under division (G) of section 3309.374 of the Revised Code.