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The effect of Goldmann applanation tonometry on automated static threshold perimetry
J B Ruben1, R A Lewis, C A Johnson
1Department of Ophthalmology, University of California, Davis at Sacramento 95817.
Ophthalmology
|February 1, 1988
Summary
Goldmann applanation tonometry does not negatively impact visual field test results in normal or ocular hypertensive individuals. This finding is crucial for accurate glaucoma and visual field defect assessments.
Area of Science:
- Ophthalmology
- Visual Neuroscience
- Optometry
Background:
- Ocular hypertension is a risk factor for glaucoma.
- Visual field testing is essential for diagnosing and monitoring glaucoma.
- Goldmann applanation tonometry is a common method for measuring intraocular pressure.
Purpose of the Study:
- To evaluate the effect of Goldmann applanation tonometry on visual field test results.
- To determine if applanation tonometry causes detrimental changes in visual fields.
- To assess the safety of applanation tonometry before visual field testing.
Main Methods:
- Automated static threshold perimetry was conducted.
- Tests were performed on both eyes of 10 normal and 12 ocular hypertensive subjects.
- Perimetry was done before and after Goldmann applanation tonometry of the right eye.
Main Results:
- Objective statistical analysis revealed no significant changes in visual field outcomes.
- Subjective evaluation also indicated no adverse effects on visual field test results.
- Applanation tonometry did not detrimentally affect visual field test performance.
Conclusions:
- Goldmann applanation tonometry does not appear to compromise visual field test accuracy.
- The procedure is safe to perform prior to visual field testing in clinical settings.
- These findings support the current clinical practice of combining tonometry and perimetry.