Reading performance with different correlated colour temperature among Presbyopia / Nor Shazana Binti Mokhtar
Introduction: Correlated colour temperature (CCT) is important characteristic of lights to be considered regarding to human perception. Good selection of lighting can improved the reading performance among presbyopia. Objective: The aim of this study is to determine the effect of warm white light (...
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| Format: | Thesis |
| Language: | English |
| Published: |
2015
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| Online Access: | http://ir.uitm.edu.my/id/eprint/22383/ http://ir.uitm.edu.my/id/eprint/22383/1/TD_NOR%20SHAZANA%20MOKHTAR%20HS%20B%2015_5.pdf |
| Summary: | Introduction: Correlated colour temperature (CCT) is important characteristic of lights to be considered regarding to human perception. Good selection of lighting can improved the reading performance among presbyopia. Objective: The aim of this study is to determine the
effect of warm white light (WWL) (CCT = 2856 K), cool white light (CWL) (CCT = 4100 K) and artificial daylight (DL)(CCT = 6500 K) on the near reading performance among
presbyopia. Methodology: This study involved fourteen presbyopia subjects aged between 35 to 65 years old (3 male, 11 female), with their mean value of distance refractive power was - 0.75D and mean value of addition power was +2.00D. GTI ColorMatcher light booth consist
of three sources of light and two types of UiTM Mrw reading charts had been used to evaluate reading performance among presbyopia. Result: One-way repeated-measure ANOVA showed that the reading performance were statistically significant increase CWL to DL and WWL to DL [12.68 (95% CI, 0.84 to 24.51) wpm, p< 0.05] and [13.33(95% CI, 1.73 to 24.92) wpm, p<0.05]. However there were no significant difference in term of reading accuracy between CWL, WWL, and DL. Conclusion: The instillation of high CCT could give benefit in increasing the reading performance and reading accuracy among presbyopia. |
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