hypotony
Pronunciation: high-pot-oh-nee
Abnormally low intraocular pressure, typically below 6-8 mmHg.
Full Definition
Hypotony refers to abnormally low intraocular pressure, generally defined as pressure below 6-8 mmHg, though the exact threshold may vary by clinical context. It can result from various causes including surgical complications, trauma, inflammation, or certain medications. Chronic hypotony can lead to serious complications such as maculopathy (hypotony maculopathy), choroidal detachment, corneal decompensation, and cataract formation. In surgical contexts, early postoperative hypotony may indicate wound leak, overfiltration, or cyclodialysis. Treatment depends on the underlying cause and may range from observation to surgical intervention.
Usage
Usage note: Include specific IOP measurement when documenting. Note associated complications if present.
In Context
- "The patient developed hypotony with associated choroidal folds following trabeculectomy." — Postoperative complication
- "Hypotony maculopathy was evident on OCT imaging with characteristic retinal striae." — Diagnostic imaging report