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Effect of blinking on tear elimination as evaluated by dacryoscintigraphy
W L White1, A T Glover, A B Buckner
1Medical Corps, Ophthalmology Service, Brooke Army Medical Center, Fort Sam Houston.
Ophthalmology
|March 1, 1991
Abstract:
To document the change in drainage of tears that occurs with blinking, the authors evaluated 17 lacrimal systems of 12 individuals with dacryoscintigraphy. A significant difference in tear drainage was found by keeping the eyelids closed during the first 2 minutes after drop placement (P less than 0.03), but not from 2 to 5 minutes (P greater than 0.4). Retardation of tear drainage after droplet placement can be achieved by simple eyelid closure for 2 minutes.