title: Unilateral optic disc edema following trabeculectomy.
abstract: Two cases of a benign form of optic disc edema after successful trabeculectomy are reported. In both patients, optic disc edema was noted 2 to 4 weeks after trabeculectomy. The edema occurred without loss of visual acuity or field. The absolute intraocular pressure and intracranial pressure were normal--that is, the edema was not a syndrome of hypotony or pseudotumor cerebri. However, both patients had intracranial pressure in the high-normal range. The decrease in intraocular pressure into the low normal range after trabeculectomy may have altered the intracranial pressure:intraocular pressure ratio at the lamina cribrosa enough to produce optic disc edema.
authors.affiliation: Midwest Eye Institute, Clarian Hospitals of Indiana, Indianapolis, USA.
authors.forename: A
authors.initials: A
authors.lastname: Kawasaki
authors.forename: V
authors.initials: V
authors.lastname: Purvin
mesh_terms: D000328:Adult; D005260:Female; D005901:Glaucoma / Q000601:surgery; D006801:Humans; D019586:Intracranial Hypertension / Q000150:complications; D007427:Intracranial Pressure; D007429:Intraocular Pressure; D008875:Middle Aged; D009765:Obesity / Q000150:complications; D009898:Optic Disk / Q000473:pathology*; D010211:Papilledema / Q000209:etiology* / Q000473:pathology; D014130:Trabeculectomy / Q000009:adverse effects*; D014792:Visual Acuity; D014794:Visual Fields