An indication for "granny glasses".
A young woman with a large astigmatic refractive error obtained no visual improvement with glasses. Repeated manifest refractions revealed persistent variations in the apparent cylinder axis. A suitable choice of spectacle frames facilitated a satisfactory outcome. The pitfalls inherent in the clinical specification of cylinder axis, and the potential visual consequences, are discussed.
Brodie
S E
SE
Department of Ophthalmology, Mt. Sinai School of Medicine, New York, New York, USA.
D000293:Adolescent; D001251:Astigmatism / Q000150:complications / Q000628:therapy*; D005139:Eyeglasses; D005260:Female; D006801:Humans; D017755:Prosthesis Fitting; D012029:Refraction, Ocular; D014792:Visual Acuity