Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri

Introduction: The correlated colour temperature (CCT) of light is important factor that can affect near visual acuity (VA) in presbyopia. Within the normal near VA, it is possible that under different level of CCT of light, the minimum threshold acuity that can be achieved in presbyopia could be dif...

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Main Author:	Samsuri, Siti Hajar Aida
Format:	Student Project
Language:	English
Published:	Faculty of Health Sciences 2015
Subjects:	RE Ophthalmology Refraction and errors of refraction and accommodation Optometry. Opticians. Eyeglasses
Online Access:	http://ir.uitm.edu.my/id/eprint/22188/ http://ir.uitm.edu.my/id/eprint/22188/1/PPb_SITI%20HAJAR%20AIDA%20SAMSURI%20HS%20B%2015_5.pdf

id	uitm-22188
recordtype	eprints
spelling	uitm-221882019-03-07T02:33:04Z http://ir.uitm.edu.my/id/eprint/22188/ Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri Samsuri, Siti Hajar Aida RE Ophthalmology Refraction and errors of refraction and accommodation Optometry. Opticians. Eyeglasses Introduction: The correlated colour temperature (CCT) of light is important factor that can affect near visual acuity (VA) in presbyopia. Within the normal near VA, it is possible that under different level of CCT of light, the minimum threshold acuity that can be achieved in presbyopia could be different compared to other ages. Objective: To determine the minimum threshold of near VA that can be achieved by presbyopia under different level of CCT using 2856 K, 4100 K and 6500 K of light and whether there is any difference of minimum threshold of near VA between three levels of CCT light. Materials and methods: This study involved subject aged between 35-65 years old (3 male, 11 female) with mean refractive error of -0.75DS and mean addition power of +2.04 DS. The subject was asked to read the letter acuity using Early Treatment Diabetic Retinopathy Screening (ETDRS) chart under three different levels of CCT light which are 2856 K, 4100 K and 6500 K. All the testing was done in the light booth (GTI LITE MODEL CMB 3064). For each CCT light, it required at least one day gap. Results: The mean of minimum threshold of near VA in 6500 K have highest mean value compared to 2856 K and 4100 K. The result from repeated measure ANOVA showed there was no statistically significant difference between the means of minimum threshold of near visual acuity that can be achieved by presbyopia and different level of CCT of light (p > 0.05) Conclusion: The highest CCT light 6500 K give better mean minimum of threshold near VA (logMAR) compared to 4100 K and 2856 K based on the mean result of minimum threshold of near VA (logMAR). Faculty of Health Sciences 2015 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/22188/1/PPb_SITI%20HAJAR%20AIDA%20SAMSURI%20HS%20B%2015_5.pdf Samsuri, Siti Hajar Aida (2015) Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri. [Student Project] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	RE Ophthalmology Refraction and errors of refraction and accommodation Optometry. Opticians. Eyeglasses
spellingShingle	RE Ophthalmology Refraction and errors of refraction and accommodation Optometry. Opticians. Eyeglasses Samsuri, Siti Hajar Aida Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri
description	Introduction: The correlated colour temperature (CCT) of light is important factor that can affect near visual acuity (VA) in presbyopia. Within the normal near VA, it is possible that under different level of CCT of light, the minimum threshold acuity that can be achieved in presbyopia could be different compared to other ages. Objective: To determine the minimum threshold of near VA that can be achieved by presbyopia under different level of CCT using 2856 K, 4100 K and 6500 K of light and whether there is any difference of minimum threshold of near VA between three levels of CCT light. Materials and methods: This study involved subject aged between 35-65 years old (3 male, 11 female) with mean refractive error of -0.75DS and mean addition power of +2.04 DS. The subject was asked to read the letter acuity using Early Treatment Diabetic Retinopathy Screening (ETDRS) chart under three different levels of CCT light which are 2856 K, 4100 K and 6500 K. All the testing was done in the light booth (GTI LITE MODEL CMB 3064). For each CCT light, it required at least one day gap. Results: The mean of minimum threshold of near VA in 6500 K have highest mean value compared to 2856 K and 4100 K. The result from repeated measure ANOVA showed there was no statistically significant difference between the means of minimum threshold of near visual acuity that can be achieved by presbyopia and different level of CCT of light (p > 0.05) Conclusion: The highest CCT light 6500 K give better mean minimum of threshold near VA (logMAR) compared to 4100 K and 2856 K based on the mean result of minimum threshold of near VA (logMAR).
format	Student Project
author	Samsuri, Siti Hajar Aida
author_facet	Samsuri, Siti Hajar Aida
author_sort	Samsuri, Siti Hajar Aida
title	Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri
title_short	Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri
title_full	Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri
title_fullStr	Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri
title_full_unstemmed	Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri
title_sort	minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / siti hajar aida samsuri
publisher	Faculty of Health Sciences
publishDate	2015
url	http://ir.uitm.edu.my/id/eprint/22188/ http://ir.uitm.edu.my/id/eprint/22188/1/PPb_SITI%20HAJAR%20AIDA%20SAMSURI%20HS%20B%2015_5.pdf
first_indexed	2023-09-18T23:08:07Z
last_indexed	2023-09-18T23:08:07Z
_version_	1777418620497821696

Minimum threshold of near visual acuity of different correlated colour temperature in presbyopia / Siti Hajar Aida Samsuri

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