Intraocular Pressure and Rates of Macular Thinning in Glaucoma.

Purpose: To evaluate the effect of intraocular pressure (IOP) on the rates of macular thickness (ganglion cell layer [GCL] and ganglion cell-inner plexiform layer [GCIPL]) change over time measured by spectral-domain (SD) OCT.

Design: Retrospective cohort study.

Participants: Overall, 451 eyes of 256 patients with primary open-angle glaucoma.