oa South African Medical Journal - A rack for retinoscopy

Volume 25, Issue 50
  • ISSN : 0256-9574
  • E-ISSN: 2078-5135



A task analysis leads to the conclusion that the greatest utility of a retinoscopy rack is in covering the zone of maximum concentration of the refractions. Attempts to cover the whole range of refractions with this type of instrument are made at the expense of accuracy and convenience. The writer's instrument is descriptionbed.

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