The innovativeself - adjustable Adspecs TM

African Vision and Eye Health


 
 
Field Value
 
Title The innovativeself - adjustable Adspecs TM
 
Creator Carlson, A.S.
 
Subject — —
Description A method of self-refraction, based onan old concept implemented with the aidof modern technology, is spectacles withadjustable lenses. The spectacle design isreferred to as the AdspecsTM. The advantageof the Adspecs is that the wearer can adjustthe powers of the lenses to suit his or hervisual needs. The power is spherical andranges from −6 to 6 D. Studies were undertakenin Ghana and South Africa. Subjectswere instructed under supervision to adjustthe powers of the Adspecs as accurately aspossible to correct their vision and obtainthe best visual acuity possible. An optometristthen refracted the patients and theresults were then compared. For the righteyes, the mean stigmatic coefficient differencefor distance vision was −0.13 D andthe standard deviation 0.89 D. For the lefteyes, the mean was −0.24 D and the standarddeviation 0.91 D. For near vision, themean for the right eyes was −0.27 D andstandard deviation 1.07 D, and for the lefteyes, the mean was −0.27 D and standarddeviation 1.23 D. The standard deviationsfor the means (at distance and near) forleft eyes were slightly greater than for theright eyes.
 
Publisher AOSIS
 
Contributor
Date 2005-12-19
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format application/pdf
Identifier 10.4102/aveh.v64i1.205
 
Source African Vision and Eye Health; South African Optometrist: Vol 64, No 1 (2005); 18-25 2410-1516 2413-3183
 
Language eng
 
Relation https://avehjournal.org/index.php/aveh/article/view/205/217
 
Coverage — — —
Rights Copyright (c) 2005 A.S. Carlson https://creativecommons.org/licenses/by/4.0