Abstract
Diurnal variations in tear evaporation in nine subjects were measured using resistance hygrometry at 2h intervals, fora 14h period. Evaporation is lowest on waking, and rises within 2h to a constant value for the rest of the day. Explanations for this pattern include low tear production during sleep and/or the presence of a thick tear film lipid layer on waking. These findings relate to observations of dry eye, lens adherence, corneal erosion, and tight lens syndrome in contact lens wear.
Original language | English |
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Pages (from-to) | 77-79 |
Number of pages | 3 |
Journal | Journal of the British Contact Lens Association |
Volume | 15 |
Issue number | 2 |
DOIs | |
Publication status | Published - Jan 1992 |
Keywords
- contact lens
- diurnal variation
- evaporation
- Tears
ASJC Scopus subject areas
- Optometry