PMID: 610434Nov 1, 1977Paper

A field expander for patients with retinitis pigmentosa: a clinical study

American Journal of Optometry and Physiological Optics
W L KennedyM I Levin

Abstract

An inexpensive, commercially available optical device was tested on 10 patients with retinitis pigmentosa to determine its value as a field expander for scanning and as an aid to mobility. Visual acuity and visual fields were measured with and without the expander, and the patients' subjective responses were monitored by a questionnaire that was administered at regular intervals during a 2- to 4-week period between test sessions. Six of the 10 subjects considered the device helpful in at least 1 important visual task and planned to continue using it.

Citations

Jan 8, 2017·Survey of Ophthalmology·Mallika Prem SenthilKonrad Pesudovs
Nov 16, 2010·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Jan E Lovie-KitchinRussell L Woods
Nov 1, 2005·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Peter Herse
Aug 31, 2016·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Ali M AlSaqr, Chris M Dickinson
Feb 27, 2020·Ophthalmic Genetics·Gabrielle D LacyKanishka T Jayasundera
Aug 24, 2019·Translational Vision Science & Technology·Yingchen HeSandra R Montezuma
Oct 17, 2019·Ophthalmic Epidemiology·Mallika Prem SenthilKonrad Pesudovs
Sep 19, 2020·Journal of Neural Engineering·Melani Sanchez-GarciaJose J Guerrero
Nov 1, 1988·Survey of Ophthalmology·R A Pagon

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