Estimating intraocular pressure using a glass rod

Shahar Frenkel, Shuli Katz, Amjad Horani, Igor Kaiserman, Saleh Abu Asleh, Eytan Z. Blumenthal

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)195-199
Number of pages5
JournalAnnals of ophthalmology
Issue number3
StatePublished - Dec 1 2006


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