Glaucoma & Cataract, Prof. Eytan Blumenthal | Estimating Intraocular Pressure Using A Glass Rod

Estimating Intraocular Pressure Using A Glass Rod

Frenkel S, Katz S, Horani A, Kaiserman I, Asleh SA, Blumenthal EZ.

Ann Ophthalmol (Skokie). 2006 Fall;38(3):195-9.
Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.


Four masked examiners studied the usefulness of the glass-rod for estimating intraocular pressure (IOP) in a living, anesthetized rabbit eye manometrically set to 135 different random values. With training, the average error in IOP estimation improved from 7.42 +/- 5.56 mmHg to 5.13 +/- 4.48 mmHg. Gentle palpation of the corneal apex with a glass-rod provides tactile and visual clues that may assist in estimating the IOP.

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