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Clinical Trial with Commercial Aspheric Aphakic Lenses

Atchison, David A. & Smith, George (1984) Clinical Trial with Commercial Aspheric Aphakic Lenses. American Journal of Optometry and Physiological Optics, 61(9), pp. 566-575.

Abstract

A clinical trial with 11 subjects was conducted to compare the Armorlite Multiple Drop, the Signet Hyperaspheric, the Sola Hi-Drop, and the American Optical Fulvue types of aspheric aphakic lenses. Reasonable off-axis visual acuities were obtained with the Signet, Sola, and Fulvue types, but poor visual acuities were found with the Armorlite type. Similar visual field limits were found with the Armorlite, Signet, and Sola types. Considerably larger limits were found with the Fulvue types than with the other types. However, subjects failed to appreciate these larger limits; this was attributed to the extremely poor image quality near the edge of the visual field with this lens type. Some subjects disliked the poor off-axis image quality with the Armorlite lens type, and it had poor acceptance relative to the other types. Concerning subjective perception of weight, cosmetic appearance, and visual field size, and subjective evaluation of performance of everyday activities, there were no significant differences between lens types. It was concluded that reducing lens off-axis power errors, corresponding to the rotating eye, should remain the most important principle of aphakic spectacle lens design.

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ID Code: 4656
Item Type: Journal Article
Additional Information: Self-archiving of the author-version is not yet supported by this publisher. For more information, please refer to the journal's website (see link) or contact the author. Author contact details: David A. Atchison d.atchison@qut.edu.au The contents of this journal can be freely accessed online via the journal’s web page (see link) 12 months after publication.
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Keywords: aphakia, aspheric lenses, clinical trial, spectacle lens design
ISSN: 1538-9235
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 1984 Lippincott Williams & Wilkins
Deposited On: 17 Aug 2006
Last Modified: 15 Jan 2009 17:08

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