METHOD FOR PROVIDING AN OPHTHALMIC PROGRESSIVE ADDITION LENS FOR AN EMMETROPIC AND PRESBYOPIC WEARER
An ophthalmic progressive addition lens for an emmetropic and presbyopic wearer having a mean refractive power, PPO(α, β), a module of resulting astigmatism, ASR(α, β), an acuity loss value ACU(α, β), wherein the (α, β) functions are determined in as-worn conditions of the lens by the wearer, and a...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
17.01.2024
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Subjects | |
Online Access | Get full text |
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Summary: | An ophthalmic progressive addition lens for an emmetropic and presbyopic wearer having a mean refractive power, PPO(α, β), a module of resulting astigmatism, ASR(α, β), an acuity loss value ACU(α, β), wherein the (α, β) functions are determined in as-worn conditions of the lens by the wearer, and a first acuity criterion, AcuityCriterion1 which fulfils following requirement: AcuityCriterion1≥435 D2.deg2, and wherein: AcuityCriterion1 is defined as a combination of PPO(α, β), ASR(α, β), ADDp, and ACU(α, β). |
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Bibliography: | Application Number: EP20160788044 |