| applanation | In tonometry, the flattening of the cornea by pressure. Intraocular pressure is directly proportional to external pressure, and inversely proportional to the area flattened. See: applanation tonometer. Origin: L. Ad, toward, + planum, plane (05 Mar 2000) |
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| applanation tonometer | An instrument for determining ocular tension by application of a small flat disk to the cornea. (05 Mar 2000) |
| Goldmann's applanation tonometer | An applanation tonometer that flattens only 3 sq mm of cornea, used with a slitlamp. (05 Mar 2000) |
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