Effect of Ametropia on Peripheral Refraction
- 1 September 1981
- journal article
- research article
- Published by Wolters Kluwer Health in Optometry and Vision Science
- Vol. 58 (9) , 691-695
- https://doi.org/10.1097/00006324-198109000-00001
Abstract
Peripheral refraction was measured in 62 eyes along the horizontal meridian from 60° nasally to 60° temporally, using a Topcon refractometer. The amount of astigmatism was found to increase progressively, although less than predicted theoretically, toward the periphery in 91% of the eyes. Dividing the sample into myopes, hyperopes, and near-emmetropes showed that the type of astigmatism differed significantly with each group of eyes and that this factor played a most important role.Keywords
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