UGC Approved Journal no 63975(19)

ISSN: 2349-5162 | ESTD Year : 2014
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Published in:

Volume 9 Issue 10
October-2022
eISSN: 2349-5162

UGC and ISSN approved 7.95 impact factor UGC Approved Journal no 63975

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Unique Identifier

Published Paper ID:
JETIRFU06002


Registration ID:
505230

Page Number

14-21

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Title

ASTIGMATISM IMPACT ON FUNCTIONAL PERFORMANCE: MERIDIONAL AND ADAPTATIONAL EFFECTS

Abstract

Correction of astigmatism in aspheric spectacle lenses has been proposed using a variety of different surfaces, including toroidal, sphero-cylindrical, ellipsoidal, and combination ones. The optical properties of four pairs of glasses for people with astigmatism were standardized. Power maps in spherical and cylindrical coordinates were generated by measuring the rear surfaces of aspheric spectacle lenses using a freeform measurement equipment. The data was analysed statistically using customised software. In a randomised, blinded, crossover clinical investigation, 28 participants' astigmatic vision was tested on consecutive days with full sphero-cyl correction and under correction by 0.25, 0.50, and 0.75 DC while maintaining spherical equivalence. The axis was off by 10 degrees in both directions (-30 and +30). Participants rated each setup on a scale from 1 to 10 for clarity, satisfaction, and acceptability of vision at 6 meters. Visual acuity was also tested at both high and low contrast. The three groups of cyl concentration had their visual performance compared using linear mixed models. Specifically, when stimuli were situated closer to, and more than 24 degrees from the center of the screen in dexterity and beyond, ANOVA and SDT analyses showed that visual performance was reduced.

Key Words

astigmatism, visual performance, astigmatism correction, adaptive optics, astigmatism and coma

Cite This Article

"ASTIGMATISM IMPACT ON FUNCTIONAL PERFORMANCE: MERIDIONAL AND ADAPTATIONAL EFFECTS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 10, page no.14-21, October-2022, Available :http://www.jetir.org/papers/JETIRFU06002.pdf

ISSN


2349-5162 | Impact Factor 7.95 Calculate by Google Scholar

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 7.95 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Cite This Article

"ASTIGMATISM IMPACT ON FUNCTIONAL PERFORMANCE: MERIDIONAL AND ADAPTATIONAL EFFECTS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 10, page no. pp14-21, October-2022, Available at : http://www.jetir.org/papers/JETIRFU06002.pdf

Publication Details

Published Paper ID: JETIRFU06002
Registration ID: 505230
Published In: Volume 9 | Issue 10 | Year October-2022
DOI (Digital Object Identifier):
Page No: 14-21
Country: -, -, India .
Area: Engineering
ISSN Number: 2349-5162
Publisher: IJ Publication


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