Effect of Contact Lenses on Contrast Sensitivity under Various Lighting Conditions

Abstract Purpose: To assess contrast sensitivity in clear and colored soft contact lenses under different lighting conditions. Methods: This study was performed on 34 medical students. Visual acuity was measured using a tumbling E chart at a distance of 6 m, and contrast sensitivity was determined b...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Monireh Mahjoob, Samira Heydarian
Formato:	article
Lenguaje:	EN
Publicado:	Knowledge E 2021
Materias:	contact lens contrast sensitivity glare visual acuity Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/990bb02b0ad346889cdeea17bb981af7
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:990bb02b0ad346889cdeea17bb981af7
record_format	dspace
spelling	oai:doaj.org-article:990bb02b0ad346889cdeea17bb981af72021-11-09T08:05:35ZEffect of Contact Lenses on Contrast Sensitivity under Various Lighting Conditions2008-20102008-322X10.18502/jovr.v16i4.9742https://doaj.org/article/990bb02b0ad346889cdeea17bb981af72021-10-01T00:00:00Zhttps://doi.org/10.18502/jovr.v16i4.9742https://doaj.org/toc/2008-2010https://doaj.org/toc/2008-322XAbstract Purpose: To assess contrast sensitivity in clear and colored soft contact lenses under different lighting conditions. Methods: This study was performed on 34 medical students. Visual acuity was measured using a tumbling E chart at a distance of 6 m, and contrast sensitivity was determined by Pelli Robson chart at a distance of 1 m. These tests were repeated in mesopic (3 lux) and glare (2000 lux) conditions. Then, a clear contact lens was applied to one eye and a colored contact lens was applied to the other. After 2 hr, visual acuity and contrast sensitivity were measured for each individual. The results were compared with and without contact lenses under normal, mesopic, and glare conditions. Results: The mean refractive error was 0.44 ± 0.20 diopters. Repeated measures ANOVA showed a decline in contrast sensitivity with colored and clear contact lenses as compared to no-lens condition (P < 0.001). Additionally, lighting conditions had a significant impact on contrast sensitivity (P < 0.001); contrast sensitivity was lower in mesopic and glare conditions than under normal lighting condition. Conclusion: In addition to the drop in contrast sensitivity under unusual lighting conditions (e.g., glare and mesopic), wearing soft contact lenses can further reduce contrast sensitivity in different lighting conditions. Therefore, people who wear contact lenses should be aware of this reduction in visual performance in conditions like driving at night or in the fog.Monireh MahjoobSamira HeydarianKnowledge Earticlecontact lenscontrast sensitivityglarevisual acuityOphthalmologyRE1-994ENJournal of Ophthalmic & Vision Research, Vol 16, Iss 4, Pp 538-543 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	contact lens contrast sensitivity glare visual acuity Ophthalmology RE1-994
spellingShingle	contact lens contrast sensitivity glare visual acuity Ophthalmology RE1-994 Monireh Mahjoob Samira Heydarian Effect of Contact Lenses on Contrast Sensitivity under Various Lighting Conditions
description	Abstract Purpose: To assess contrast sensitivity in clear and colored soft contact lenses under different lighting conditions. Methods: This study was performed on 34 medical students. Visual acuity was measured using a tumbling E chart at a distance of 6 m, and contrast sensitivity was determined by Pelli Robson chart at a distance of 1 m. These tests were repeated in mesopic (3 lux) and glare (2000 lux) conditions. Then, a clear contact lens was applied to one eye and a colored contact lens was applied to the other. After 2 hr, visual acuity and contrast sensitivity were measured for each individual. The results were compared with and without contact lenses under normal, mesopic, and glare conditions. Results: The mean refractive error was 0.44 ± 0.20 diopters. Repeated measures ANOVA showed a decline in contrast sensitivity with colored and clear contact lenses as compared to no-lens condition (P < 0.001). Additionally, lighting conditions had a significant impact on contrast sensitivity (P < 0.001); contrast sensitivity was lower in mesopic and glare conditions than under normal lighting condition. Conclusion: In addition to the drop in contrast sensitivity under unusual lighting conditions (e.g., glare and mesopic), wearing soft contact lenses can further reduce contrast sensitivity in different lighting conditions. Therefore, people who wear contact lenses should be aware of this reduction in visual performance in conditions like driving at night or in the fog.
format	article
author	Monireh Mahjoob Samira Heydarian
author_facet	Monireh Mahjoob Samira Heydarian
author_sort	Monireh Mahjoob
title	Effect of Contact Lenses on Contrast Sensitivity under Various Lighting Conditions
title_short	Effect of Contact Lenses on Contrast Sensitivity under Various Lighting Conditions
title_full	Effect of Contact Lenses on Contrast Sensitivity under Various Lighting Conditions
title_fullStr	Effect of Contact Lenses on Contrast Sensitivity under Various Lighting Conditions
title_full_unstemmed	Effect of Contact Lenses on Contrast Sensitivity under Various Lighting Conditions
title_sort	effect of contact lenses on contrast sensitivity under various lighting conditions
publisher	Knowledge E
publishDate	2021
url	https://doaj.org/article/990bb02b0ad346889cdeea17bb981af7
work_keys_str_mv	AT monirehmahjoob effectofcontactlensesoncontrastsensitivityundervariouslightingconditions AT samiraheydarian effectofcontactlensesoncontrastsensitivityundervariouslightingconditions
_version_	1718441224438808576

Effect of Contact Lenses on Contrast Sensitivity under Various Lighting Conditions

Ejemplares similares