Corneal epithelial defects were more common after vitrectomy surgery using hand-held infusion lenses than after surgery using sew-on lenses and did not occur with the noncontact lens system. In addition, reducing the operative time may independently reduce the risk of epithelial defects, regardless of lens type.

Purpose-To describe a simple and inexpensive model eye that allows lifelike simulation of indirect ophthalmoscopy and retinal photocoagulation. Methods-A 60 D examination lens, a bulb syringe, foam poster-board, a manila folder, a hobby knife, a fine pair of scissors, a glue gun, and a 2.5 cm square Optos color fundus photograph printed at 1200 dpi resolution on glossy photographic paper were used to create a model eye. Results-This model produces a high-quality, inverted, and aerial image that closely simulates clinical indirect ophthalmoscopy. Pupil size and retinal pathology can be easily changed. Binocular indirect laser photocoagulation can also be simulated, because white laser burns will appear on the glossy inkjet photograph. Conclusions-Binocular indirect ophthalmoscopy and indirect laser photocoagulation are technically challenging diagnostic and therapeutic techniques. This simple and easy-to-build eye model allows for lifelike simulation of indirect ophthalmoscopy and indirect laser retinal photocoagulation. ▱ Several pieces of hook-and-loop fastener

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