Prescribing for patients with subnormal vision.
D000328:Adult; D002648:Child; D005139:Eyeglasses; D006225:Hand; D006801:Humans; D007909:Lenses; D008027:Light; D008722:Methods; D012029:Refraction, Ocular / Q000295:instrumentation; D012656:Self-Help Devices; D009626:Terminology as Topic; D014786:Vision Disorders / Q000175:diagnosis / Q000534:rehabilitation*; D014787:Vision Tests; D014792:Visual Acuity