Hypotony Maculopathy: A Clinical Overview
Ocular hypotony is classically defined as an intraocular pressure (IOP) below 6.5 mmHg (statistical definition) or as an IOP low enough to result in visual loss (clinical definition). Persistent hypotony can result in hypotony maculopathy, a condition first described by Dellaporta in 1954, which is characterised by chorioretinal folds, retinal vascular tortuosity, and optic disc oedema. Recognition of hypotony maculopathy is key, as this can be sight-threatening and timely intervention may prevent permanent visual loss.
