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Evidence for the major contribution of evaporation to tear film thinning between blinks.

Authors
  • Kimball, Samuel H
  • King-Smith, P Ewen
  • Nichols, Jason J
Type
Published Article
Journal
Investigative Ophthalmology & Visual Science
Publisher
Association for Research in Vision and Ophthalmology (ARVO)
Publication Date
Dec 01, 2010
Volume
51
Issue
12
Pages
6294–6297
Identifiers
DOI: 10.1167/iovs.09-4772
PMID: 20688724
Source
Medline
License
Unknown

Abstract

The large reduction in thinning rate caused by wearing goggles indicates that evaporation is the major cause of thinning between blinks. The mean thinning rate in free air is greater than reported evaporation rates; it is argued that the preocular chambers used in evaporimeters restrict movement of air over the tear film and reduce evaporation compared to our free air condition.

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