Peripapillary retinoschisis associated with open angle glaucoma responding to dorzolamide

We present a case of peripapillary retinoschisis in a phakic patient that developed during treatment with a topical prostaglandin analogue. The schisis resolved after switching the prostaglandin analogue to a topical carbonic anhydrase inhibitor. We suggest that the prostaglandin may have had a role in initiating peripapillary retinoschisis associated with glaucomatous optic neuropathy and that carbonic anhydrase inhibitors are a potential treatment for this condition.