- Undergoing surgery as part of standard care for one of the following conditions: (1) PDR, (2) rhegmatogenous retinal detachment with PVR, (3) rhegmatogenous retinal detachment without PVR, (4) macular pucker, (5) macular hole OR receiving as part of standard care, an intraocular injection of a steroid for macular edema or progressive fibrosis.