- Jul 30, 2007
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- VT
Evaporation is the Primary Mechanism of Tear Film Thinning between Blinks. Invest Ophthalmol Vis Sci. 2010 Aug 4; Authors: Kimball SH, King-Smith PE, Nichols JJ Purpose: To determine the contribution of evaporation to the thinning of the pre-corneal tear film between blinks. Methods: The rate of tear film thinning after a blink was measured using spectral interferometry from the right eyes of 37 subjects. Data were obtained under two different conditions: free air and airtight goggles. Results: The mean (+/- SD) tear film thinning rates for subjects was 3.22 +/- 4.27 microm/min in free air and -0.16 +/- 1.78 microm/min (i.e., a slight but not significant thickening) for the same subjects wearing airtight goggles; this reduction in thinning rates was significant (P
