J Korean Ophthalmol Soc.
2001 Mar;42(3):453-458.
Seohan Computerized Hue Test(2): Total Error Scores According to the Age in Normal Subjects and Total Error Scores and Central Cap in Color Defectives
- Affiliations
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- 1Department of Ophthalmology, College of Medicine, Ulsan University, Ulsan, Korea.
- 2Department of Ophthalmology, College of Medicine, Seoul National University, Seoul, Kora.
- 3Department of Electronic Engineering, Handong University, Pohang, Korea.
- 4Department of Biomedical Engineering, College of Medicine, Seoul National University, Seoul, Korea.
Abstract
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PURPOSE: To evaluate the clinical usefulness and its own characteristic of Seohan computerized 85-hue test(SCHT-85) which was developed by authors.
METHODS
SCHT-85 was performed in 89 normal subjects and 41 subjects with color defects diagnosed by Hardy-Rand-Rittler test(HRR test) and Farnsworth Munsell 100-hue test(FM 100-hue test) and total error scores(TES) according to the age in normal subjects and TES and central cap in subjects with color defects were determined.
RESULTS
In normal subjects, TES of SCHT-85 according to the age were slightly higher than those of FM 100-hue test and highly correlated with those of FM 100-hue test. TES of SCHT-85 were increased according to the degree of abnormality in the HRR test in subjects with color defects. TES of SCHT-85 were lower than those of FM 100-hue test in normal subjects and higher than those of FM 100-hue test in subjects with color defects. In subjects with color defects, the central cap of SCHT-80 showed the tendency to yellowgreen-purple axis in protan and green-bluepurple axis in deutan compared to that of FM 100-hue test.
CONCLUSIONS
SCHT-85 is highly correlated with FM 100-hue test and seems to be more useful to differentiate normal subjects and subjects with color defects than FM 100-hue test.