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Abstract #5638 Published in IGR 2-1
More than 4 years' experience with electronic intraocular needle tonometry
Marx W; Madjlessi F; Reinhard T; Althaus C; Sundmacher ROphthalmologe 1999; 96:498-502
BACKGROUND: Applanation tonometry in eyes with pathological corneae often cannot be performed or can produce rather questionable results. The authors report on their four-year experience with electronic intraocular needle tonometry. PATIENTS AND METHODS: Since developing and calibrating a system for intraocular needle tonometry in 1994, they have performed 395 measurements in 252 eyes with irregular corneae and suspicion of glaucoma. If applanation tonometry values could be obtained, these were compared with the true intraocular pressure. RESULTS: Depending on the kind of corneal pathology, applanation tonometry values were lower and sometimes much lower than true intraocular pressure. No serious complications occurred as a result of intraocular needle tonometry. CONCLUSIONS: Intraocular needle tonometry is a safe procedure, and is the only way to measure intraocular pressure precisely in eyes with pathological corneae. LA: German
Dr. W. Marx, Augenklinik der Heinrich-Heine-Universitat, Dusseldorf, Germany
Classification:
6.1 Intraocular pressure measurement; factors affecting IOP (Part of: 6 Clinical examination methods)