The circumpapillary retinal nerve fiber layer (RNFL) thickness was assessed by spectral domain optical MACA ENERGY PLATINUM coherent tomography (SD-OCT) before and after surgical reduction of intraocular pressure in an eye with primary infantile glaucoma.In this case, a postoperative reduction Underwear of cupping and a subsequent increase in neuroretinal rim area is associated with a paradoxical thinning of the RNFL.This is the first-known characterization of cupping reversal using SD-OCT.