Thickness and weight of lenses for myopia.
High index lens materials have been introduced to minimize lens weight and thickness. By studying the best form lenses for different refractive indices and the effects of changing lens forms on thickness and weight, a method is proposed for comparing minus lenses in weight and thickness for different refractive indices and lens diameters.
Tang
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Department of Optometry and Vision Sciences, University of Manchester Institute of Science and Technology, UK.
D005139:Eyeglasses; D006801:Humans; D008433:Mathematics; D009216:Myopia / Q000628:therapy*; D055095:Optics and Photonics; D012031:Refractometry; D013046:Specific Gravity