Date of Award
Master of Science in Vision Science
Non-cycloplegic autorefraction or retinoscopy are often performed during vision screenings and eye care missions to obtain a quick refraction for all age groups. In an attempt to compare the accuracy of autorefraction and retinoscopy, under noncycloplegic conditions, the results of five papers examining non-cycloplegic and cycloplegic autorefraction and four papers examining non-cycloplegic and cycloplegic retinoscopy are analyzed. It was found that non-cycloplegic autorefraction can underestimate hyperopia by up to 8.00 D, and non-cycloplegic retinoscopy usually underestimates hyperopia by no more than 2.00 Din children due to poorly controlled accommodative response. Autorefraction results, especially those obtained without the use of a cycloplegic, should not be used for prescriptive purposes with children. Autorefraction without cycloplegia has been shown to be reasonably accurate for determination of astigmatic power and axis in all age groups.
Peel, Jessica and Negoita, Nicole, "The use of non-cycloplegic autorefraction vs. non-cycloplegic retinoscopy in children during eyecare missions: A literature review" (2002). College of Optometry. 1414.