Abstract: The literature has reported that tonometry done on keratoconic eyes shows lower intraocular pressure (IOP) when compared to normal control groups. This implies that keratoconus is a low-pressure eye phenomena. Both noncontact tonometry (NCT) and Goldmann tonometry were performed on 14 keratoconic eyes. In all cases, the IOP measured by NCT was significantly lower than that indicated by Goldmann tonometry when measured on the same cornea. Classical tonometry calibration was determined originally by applying a deforming force to a cornea with normal ocular rigidity. Since keratoconus corneas do not have normal tissue rigidity, the low IOP readings by NCT and Goldmann tonometry do not seem to be a true measure of actual IOP in keratoconuc eyes.
Publication Year: 1993
Publication Date: 1993-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 3
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