applanation

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 ALSO: a. tonometer. [L. ad, toward, + planum, plane]

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ap·pla·na·tion .ap-lə-'nā-shən n abnormal flattening of a convex surface (as of the cornea of the eye)

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n.
a method of flattening the cornea that is used to determine the intraocular pressure in applanation tonometry (see tonometer).

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ap·pla·na·tion (ap″lə-naґshən) [L. applanatio] undue flatness, as of the cornea.

Medical dictionary. 2011.

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Look at other dictionaries:

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  • Applanation — Ap|pla|na|ti|on* die; , en <zu ↑ad..., lat. planare »ebnen« (vgl. ↑applanieren) u. ↑...ation> Abflachung der Hornhaut des Auges (Med.) …   Das große Fremdwörterbuch

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