PubMed · 6824054
A multipurpose low-vision aid.
Abstract
We constructed a low-vision aid for a 61-year-old patient who had familial macular degeneration and a visual acuity of 20/300. The aid consisted of a spectacle lens incorporating his distance prescription as the carrier, a high-plus bifocal reading addition, and the high-minus ocular lens of a Galilean telescope of variable magnification. The objective lens of the telescope can be carried as a folding, dual-lens, hand magnifier.
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A Safir, D Loupe, E S Naccari, A J Fitzgerald. 1983. A multipurpose low-vision aid.. https://doi.org/10.1016/0002-9394(83)90020-x
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