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PubMed · 342589

Development of variable- focus lenses and a new refractor.

L W Alvarez
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Abstract

This paper traces the events that led to the development of the variable-focus lens, the variable-power astigmatic lens, and the principle of remote refraction and "phantom lenses." These developments formed the basis for invention of a new subjective refractor-the Vision Analyzer- whose novel design and rapid operation are described.

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AstigmatismHistory, 19th CenturyHistory, 20th CenturyHumansLensesMathematicsMethodsOptics and PhotonicsOptometryRefraction, OcularRefractive ErrorsHistorical ArticleJournal Article

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L W Alvarez. 1978. Development of variable- focus lenses and a new refractor.. https://pubmed.ncbi.nlm.nih.gov/342589/

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