title: Reversed telescopes on visual efficiency scores in field-restricted patients.
abstract: Low vision aids have not been successfully prescribed for many people with peripheral visual field loss. Visual field and visual acuity measurements for four field-restricted subjects were made with and without field-expanding reversed telescopes. The calculated visual efficiency was not significantly improved with such devices; therefore, their value remains in question.
mesh_terms: D005901:Glaucoma / Q000150:complications; D006801:Humans; D007909:Lenses / Q000592:standards*; D012174:Retinitis Pigmentosa / Q000150:complications; D014786:Vision Disorders / Q000209:etiology / Q000628:therapy*; D014792:Visual Acuity; D014794:Visual Fields