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Contact lens field examiner

24 March 1983


Low vision aids have not been successfully prescribed for many patients with peripheral visual field loss. In this experiment, visual field and visual acuity measurements for eighteen subjects with artificially restricted fields were made with and without two contact lens field expanders. The calculated visual efficiency was significantly improved with these devices which led the experimenters to believe that the potential of this device is very good for being a useful low vision aid.


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