Okla. Stat. tit. 85A, § 85A-80: Review of compensation judgments

A. A final order for permanent disability is a final

adjudication of all issues pending in the claim unless reserved in

the order or by operation of law. Except where a joint petition

settlement has been approved, the Workers' Compensation Commission

may review any compensation judgment, award, or decision. Such

review may be done at any time within six (6) months from the date

of the last order in which monetary benefits were awarded or active

medical treatment was provided, on the Commission's own motion or on

the application of any party in interest, and unless filed within

such period of time shall be forever barred. On review, the

Commission may make a judgment or award terminating, continuing,

decreasing, or increasing for the future the compensation previously

awarded, subject to the maximum limits provided for in this title.

An order denying an application to reopen a claim shall not extend

the period of time set out in this title for reopening the claim. A

failure to comply with a medical treatment plan ordered by the

Commission shall bar the reopening of a claim.

B. The review and subsequent award shall be made in accordance

with the procedure prescribed in Sections 69 through 78 of this

title. No review shall affect any compensation paid under a prior

order, judgment or award.

C. The Commission may correct any clerical error in any

compensation judgment or award within one (1) year from the date of

its issuance.

D. Aging and the effects of aging on a compensable injury are

not to be considered in determining whether there has been a change

in physical condition. Aging or the effect of aging on a

compensable injury shall not be considered in determining permanent

disability under this section or any other section in this act.