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Effect of phacoemulsification surgery on hypotony following trabeculectomy surgery
1Department of Ophthalmology, JHMHC Box 100284, Gainesville, FL 32610-0284, USA. jwdoyle@eyel.eye.ufl.edu
Objective:
To review the effect of phacoemulsification surgery in eyes with chronic hypotony following trabeculectomy with mitomycin C.
Design:
Retrospective analysis of all eyes that underwent phacoemulsification surgery for symptomatic cataracts and had a preoperative diagnosis of chronic hypotony (intraocular pressure [IOP]
Setting:
A tertiary care referral center.
Intervention:
Clear cornea phacoemulsification surgery, with minimal perioperative anti-inflammatory medication and retention of viscoelastic in eyes at case conclusion.
Main Outcome Measures:
Intraocular pressure, visual acuity, and complications.
Results:
Nine eyes of 9 patients were identified. Mean preoperative IOP was 4. 2 +/- 1.4 mm Hg; the mean postoperative IOP was 7.3 +/- 2.8 mm Hg (P=.009). Intraocular pressure increased in all but 2 eyes. One of these 2 eyes experienced an acutely elevated IOP (34 mm Hg) on postoperative day 4, which dropped back to preoperative levels after trabeculectomy flap needling. Mean preoperative visual acuity was 20/300; mean postoperative visual acuity was 20/40.
Conclusion:
Phacoemulsification surgery may be associated with a statistically significant elevation in IOP in previously filtered eyes with hypotony, resulting in resolution of hypotony in some of these challenging cases. Arch Ophthalmol. 2000;118:763-765