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December 1988

The Mainster Lens in Eyes With Intraocular Gas

Arch Ophthalmol. 1988;106(12):1649. doi:10.1001/archopht.1988.01060140821008

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To the Editor.  —The Mainster lens used for photocoagulation of the posterior pole and panretinal photocoagulation gives a wide field of vision and good magnification at the same time. Recently, I found a new use for this lens and would like to share it with your readers.I saw a patient with a macular hole and a total retinal detachment that recurred after vitrectomy and partial laser photocoagulation. The patient underwent an air-fluid exchange at the slit lamp; however, because of her advanced age and poor cooperation, a 50% fill was obtained. With positioning, the retinal detachment disappeared. At completion of laser photocoagulation, I tried to use the conventional plano contact lens and found that the meniscus and the multiple reflections on the anterior surface of the bubble were interfering with a precise view of the macula. Even with eye movement, laser treatment was impossible. By using the Mainster lens,

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