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Diaphragm IOL appears effective for combined aniridia, aphakia

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Implantation of an IOL with an attached black diaphragm can improve visual acuity and reduce glare in eyes that are aniridic after trauma, according to a Chinese study.

Xiaoguang Dong, MD, and colleagues at the Shandong Eye Institute in Qingdao retrospectively studied the implants in 15 eyes with aniridia, aphakia and previous pars plana vitrectomy. The eyes had the black diaphragm IOL implanted 6 to 72 months after vitrectomy due to trauma. Before IOL implantation, all patients had reduced visual acuity from aphakia and intolerable glare from aniridia. Follow up ranged from 3 to 34 months.

All eyes showed improved acuity and marked glare reduction after IOL implantation; no major decentration was seen. Five patients had increased IOP 3 to 5 days after implantation, which was controlled by topical timolol or selective laser trabeculoplasty.

The study is published in the Journal of Cataract & Refractive Surgery.