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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,
Desroches G. The Mainster Lens in Eyes With Intraocular Gas. Arch Ophthalmol. 1988;106(12):1649. doi:10.1001/archopht.1988.01060140821008