Ohio Rev. Code Ann. § 742.38
(A)
(C) For purposes of determining under division (D) of this section whether a member of the fund is disabled, the board shall adopt rules establishing objective criteria under which the board shall make the determination. The rules shall include standards that provide for all of the following:
(D) This division does not apply to members of the fund who have elected to receive benefits and pensions in accordance with division (A) or (B) of section 742.37 of the Revised Code or from a police relief and pension fund or a firemen's relief and pension fund in accordance with the rules of that fund in force on April 1, 1947. As used in this division: "Totally disabled" means a member of the fund is unable to perform the duties of any gainful occupation for which the member is reasonably fitted by training, experience, and accomplishments. Absolute helplessness is not a prerequisite of being totally disabled. "Permanently disabled" means a condition of disability from which there is no present indication of recovery.