Any member retired under this chapter or vested for a benefit under this chapter may serve as a senior judge as provided for in Code Section 15-1-9.2 or Code Section 15-1-9.3 or as otherwise provided by legislation enacted after July 1, 1998, and compensation for such service shall not affect, enhance, diminish, or otherwise impair the payment or receipt of any retirement or pension benefits of such judge.
OCGA § 47-23-110