The significance of tear film break-up time in the diagnosis of dry eye syndrome.
- Author:
Jin Hak LEE
1
;
Chang Won KEE
Author Information
- Publication Type:Original Article ; Comparative Study
- Keywords: dry eye syndrome; reproducibility of the BUT; tear film break-up time
- MeSH: Adult; Dry Eye Syndromes/*diagnosis; Female; Humans; Male; Tears/*analysis; Time Factors
- From:Korean Journal of Ophthalmology 1988;2(2):69-71
- CountryRepublic of Korea
- Language:English
- Abstract: The significance of tear film break-up time (BUT) was investigated by analyzing its distribution and reproducibility in 30 normal subjects and 20 dry eye patients. The BUTs* were all above 5 seconds and the reproducibility was 65% in normalsubjects. However, those were all below 10 seconds and the reproducibility was 95% in dry eye patients. These results suggest that: 1) The patient whose BUT* is below 5 seconds can be diagnosed as dry eye syndrome. 2) The value of BUT* above 10 seconds can be regarded as normal. (*The mean value of 4 different visits)
