This article is more than 5 years old. Information may no longer be current.
Study determines predictors of long-term IOP after cataract surgery
J Cataract Refract Surg. 2012;38(1):117-123.
Click Here to Manage Email Alerts
Postoperative IOP predictions among patients who had cataract surgery were improved by averaging up to four preoperative IOP values compared with using the final preoperative IOP value only, a study found.
The case series included 77 participants with open filtration angles who had phacoemulsification with posterior chamber IOL implantation between March and June of 2008. The researchers assessed clinical variables, applanation tonometry IOP, anatomic features on anterior segment optical coherence tomography and gonioscopy before and after uneventful cataract surgery.
Results showed that a high cross-sectional area on anterior segment OCT was linked to lower postoperative IOP.
"These findings might help identify patients who are likely to have the largest IOP drop after cataract surgery," the study authors said.
The mean iris cross-sectional area decreased postoperatively from 3.84 mm2 to 3.70 mm2 (P = .01). The mean convex hull of the iris segments also decreased postoperatively, from 5.05 mm2 to 4.19 mm2 (P < .001).
Mean postoperative IOP was independently predicted by the preoperative average IOP, primary open-angle glaucoma, and the convex hull of cross-sectional iris segments.
Phacoemulsification parameters, incision type, and anterior chamber angle and depth did not predict postoperative IOP.