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Visual fields remain stable following trabeculectomy, combined glaucoma surgery, study finds
Ophthalmic Surg Lasers Imaging. 2010;41:452-458.
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Visual fields were not adversely affected by trabeculectomy alone or combined phacoemulsification-glaucoma surgery, while mean IOP and amount of ocular hypotensive medications were also reduced, a study found.
"In the subset of 47 eyes with reliable visual fields, the [combined glaucoma surgery] group experienced a mean improvement in mean deviation of 2.75 dB, and the [trabeculectomy-alone] group experienced only minimal changes in visual fields," study authors said.
The study examined two groups of patients: a trabeculectomy-alone group of 92 eyes of 73 patients and a combined phaco-trabeculectomy group of 49 eyes of 41 patients. All surgeries were performed by one surgeon.
At least 6 months of follow-up was reviewed.
The study found that both the combined glaucoma surgery group and trabeculectomy-alone group had decreased mean IOP (4.7 ± 6.0 and 10.1 ± 6.5 mm Hg, respectively). The mean number of ocular hypotensive medications for the combined group and trabeculectomy-alone group was also reduced (1.8 ± 1.2 and 2.2 ± 1.5, respectively).
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