Method and apparatus for determining true intraocular pressure

Details Method and apparatus for determining true intraocular pressure Method and apparatus for determining true intraocular pressure

2011-03-22

2011-03-22

Hindenburg, Max (Department: 3736)

Surgery

Diagnostic testing

Testing aqueous humor pressure or related condition

Reexamination Certificate

active

07909765

ABSTRACT:
A method and apparatus for measuring intraocular pressure of an eye use an empirically derived function wherein an inward applanation pressure P1and an outward applanation pressure P2obtained during a corneal deformation cycle caused by a fluid pulse are separately weighted so as to minimize cornea-related influence on the intraocular pressure value calculated by the function. In one embodiment, the function is optimized, at least in part, to minimize change in calculated IOP between measurements made before surgical alteration of the cornea and measurements made after surgical alteration of the cornea.

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Zeimer Ophthalmic Systems AG; Pascal Dynamic Contour Tonometer; Product Literature published Jan. 3, 2005.

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