Comparison of visibility threshold on different chromatic contrast objects / Saiful Azlan Rosli … [et al.]
The aim of this study was to compare the visibility threshold of eight plates with different chromatic contrast. The staircasepsychophysics method based on the resolution of gaps in Landolt C was used to determine the average visibility threshold. Thirty young adults with best-corrected visual acuit...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit UiTM (UiTM Press)
2016
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| Subjects: | |
| Online Access: | http://ir.uitm.edu.my/id/eprint/16042/ http://ir.uitm.edu.my/id/eprint/16042/1/AJ_SAIFUL%20AZLAN%20ROSLI%20SMRJ%2016.pdf |
| Summary: | The aim of this study was to compare the visibility threshold of eight plates with different chromatic contrast. The staircasepsychophysics method based on the resolution of gaps in Landolt C was used to determine the average visibility threshold. Thirty young adults with best-corrected visual acuity of 6/6, normal colour perception and no history of ocular diseases were recruited. The results showed a combination of white on blue background plate gave a highest visibility level (mean=44.48±6.37m), while red on a blue background was the least visible combination (mean=33.30±4.68m). In conclusion, the chromatic contrast of an object can affect the visibility threshold. |
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