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.
Original language | English |
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Pages (from-to) | 25-28 |
Number of pages | 4 |
Journal | Journal of the British Contact Lens Association |
Volume | 17 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 1994 |
Keywords
- age
- Chinese
- cotton thread test
- gender
- Tear volume
ASJC Scopus subject areas
- Optometry