Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11984
Title: The cotton thread test on Chinese eyes:effect of age and gender
Authors: Cho, P 
Yap, M 
Keywords: Age
Chinese
Cotton thread test
Gender
Tear volume
Issue Date: 1994
Publisher: Elsevier
Source: Journal of the British Contact Lens Association, 1994, v. 17, no. 1, p. 25-28 How to cite?
Journal: Journal of the British Contact Lens Association 
Abstract: Tear volume, measured using a cotton thread test (CTT), was assessed in 91 Hong Kong (HK)-Chinese (46 females,45 males aged from 8 to 70 years) and 35 Singapore (S)-Chinese (21 females, 14 males aged from 7 to 65 years). The mean (±SD) CTT value of HK-Chinese and S-Chinese was 17.5 (±8.1) mm/min and 19.6 (±12.0) mm/min respectively. No significant difference in the CTT values between the two groups of Chinese was found, so their data were pooled. The mean (±SD) CTT value of the pooled data was 18.1 (±9.3) mm/min; 18.4 (±9.0) mm/min for female subjects and 17.8 (±9.7) mm/min for male subjects. Regression statistics of the pooled CTT values on age showed a correlation of -0.59 (p<0.01), suggesting that tear volume decreases with increasing age. No gender effect on tear volume for either group of Chinese was found.
URI: http://hdl.handle.net/10397/11984
ISSN: 0141-7037
DOI: 10.1016/S0141-7037(94)80014-6
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