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Refractive outcome 'reasonably predictable' after trabeculectomy, phaco in glaucoma patients

J Glaucoma. 2009;18(4):284-287.

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Mean predicted and manifest refractions did not differ significantly for both glaucoma and glaucoma suspect patients who underwent phacoemulsification with or without trabeculectomy, a study found.

The retrospective, interventional, case-control study examined the records of glaucoma or medically treated glaucoma suspect patients who underwent cataract extraction. Patients were divided into two groups: one group, 27 eyes of 25 patients, had phaco with IOL implantation after trabeculectomy, whereas the control group, 52 eyes of 49 glaucoma or glaucoma suspect patients, underwent phaco with IOL implantation.

According to researchers, the mean final refraction and the mean predicted refraction were not statistically significant in both groups. Although mean IOP showed a significant decrease after trabeculectomy (25.9 mm Hg to 9.6 mm Hg, P < .001), it had a significant increase after phaco (9.6 mm Hg to 12.5 mm Hg, P = .001), they found.

"Though numerous variables can potentially influence the refractive outcome in cataract extraction after trabeculectomy, our study shows that the refractive outcome in these cases remained reasonably predictable," clinicians said.