Factors Affecting Tear Film Breakup in Normal Eyes
- 1 February 1973
- journal article
- research article
- Published by American Medical Association (AMA) in Archives of Ophthalmology (1950)
- Vol. 89 (2) , 103-105
- https://doi.org/10.1001/archopht.1973.01000040105007
Abstract
Tear film breakup time (BUT) was measured in 50 normal subjects. The reproducibility of this value, its relationship to age and sex, the effects of lid holding, and the instillation of a local anesthetic were studied. Results have defined a range of normal values and indicate that holding the lids and the instillation of a local anesthetic significantly reduce BUT. No relationship between BUT and age, sex, or corneal sensation was noted. Breakup time is a reproducible phenomenon in an individual eye.Keywords
This publication has 1 reference indexed in Scilit:
- Further Studies on the Pathophysiology of Keratitis Sicca of RolletArchives of Ophthalmology (1950), 1970