Phakometric measurement of ocular surface radius of curvature and alignment: evaluation of method with physical model eyes

Barry, Jean-Cyriaque; Dunne, Mark and Kirschkamp, Thomas Phakometric measurement of ocular surface radius of curvature and alignment: evaluation of method with physical model eyes. Ophthalmic and Physiological Optics, 21 (6), pp. 450-460.

Abstract

Ophthalmophakometric measurements of ocular surface radius of curvature and alignment were evaluated on physical model eyes encompassing a wide range of human ocular dimensions. The results indicated that defocus errors arising from imperfections in the ophthalmophakometer camera telecentricity and light source collimation were smaller than experimental errors. Reasonable estimates emerged for anterior lens surface radius of curvature (accuracy: 0.02–0.10 mm; precision 0.05–0.09 mm), posterior lens surface radius of curvature (accuracy: 0.10–0.55 mm; precision 0.06–0.20 mm), eye rotation (accuracy: 0.00–0.32°; precision 0.06–0.25°), lens tilt (accuracy: 0.00–0.33°; precision 0.05–0.98°) and lens decentration (accuracy: 0.00–0.07 mm; precision 0.00–0.07 mm).

Publication DOI: https://doi.org/10.1046/j.1475-1313.2001.00612.x
Divisions: Life & Health Sciences > Optometry
Life & Health Sciences > Ophthalmic Research Group
Life & Health Sciences > Applied Health Research Group
Life & Health Sciences > Health Sciences
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Uncontrolled Keywords: defocus errors,imperfections,ophthalmophakometer camera,telecentricity,light source collimation,Ophthalmology,Sensory Systems,Health Professions(all)

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