Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics Spectra BioPhotonics EuroPhotonics Vision Spectra Photonics Showcase Photonics ProdSpec Photonics Handbook

Optical Prism Exdpands Vision Field for the Sight-Impaired

Facebook Twitter LinkedIn Email Comments
A series of novel optical designs may address the limitations of current peripheral prism eyeglasses and help further expand the field of vision for patients with hemianopia, a condition in which the visual fields of both eyes are cut in half. Current high power prism segments embedded in a regular spectacle lens can expand the upper and lower visual fields of patients by as much as 30°. However, this technology does not expand the central area of the visual field. By embedding the current prism in a spectacle lens that has prismatic power in the opposite direction, the image...Read full article

Related content from Photonics Media



    ARTICLES


    PRODUCTS


    PHOTONICS HANDBOOK ARTICLES


    WHITEPAPERS


    WEBINARS


    PHOTONICS DICTIONARY TERMS


    MEDIA


    PHOTONICS BUYERS' GUIDE CATEGORIES


    COMPANIES

    back to top
    Facebook Twitter Instagram LinkedIn YouTube RSS
    ©2020 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA, [email protected]

    Photonics Media, Laurin Publishing
    x Subscribe to Photonics Spectra magazine - FREE!
    We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.