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PubMed · 285517

Variable focus spectacles.

B M Wright
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Abstract

The history of prostheses for presbyopia is reviewed with an account of the development of variable focus spectacles. They have fluid-filled cells, with one flexible wall on the back of the base lens. The curvature of the flexible wall can be varied by operating a bellows in one side-arm. Their use for presbyopia, aphakia, and glaucoma is considered. The spectacles are believed to have reached a stage where they are ready for commercial production.

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EyeglassesHumansPresbyopiaProsthesis DesignJournal Article

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B M Wright. 1978. Variable focus spectacles.. https://pubmed.ncbi.nlm.nih.gov/285517/

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