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Changes with age in Schiötz and Goldmann readings
1Department of Research in Primary Health Care, University of Lund, Malmö, Sweden.
Acta Ophthalmologica
|June 1, 1992
Summary
Intraocular pressure (IOP) measurements using Schiötz and Goldmann tonometry show age-related changes. Goldmann readings diverge from Schiötz readings after age 50, indicating Schiötz may be less reliable for tracking true IOP changes.
Area of Science:
- Ophthalmology
- Biomedical Engineering
- Gerontology
Background:
- Intraocular pressure (IOP) is a critical factor in glaucoma diagnosis and management.
- Accurate IOP measurement is essential for monitoring disease progression and treatment efficacy.
- Age-related changes in ocular physiology may influence tonometry readings.
Purpose of the Study:
- To compare intraocular pressure (IOP) readings obtained by Schiötz and Goldmann tonometry across different age groups.
- To evaluate the reliability of Schiötz tonometry in reflecting true IOP changes with aging.
- To identify potential age-related biases in tonometric measurements.
Main Methods:
- Retrospective analysis of 3,115 paired Schiötz and Goldmann tonometry readings.
- Participants aged 10-79 years were included in the study.
- Comparative analysis of IOP measurements based on age cohorts.
Main Results:
- A biphasic pattern of IOP change with age was observed: an initial drop followed by a rise.
- Schiötz and Goldmann tonometry yielded similar results for individuals up to 50 years of age.
- After age 50, Goldmann tonometer readings increased at a faster rate than Schiötz readings.
- Schiötz tonometer readings did not reliably reflect true IOP changes over time or across age groups.
Conclusions:
- Schiötz tonometry may underestimate true IOP changes, particularly in older individuals.
- Goldmann tonometry appears more reliable for assessing age-related IOP fluctuations.
- Clinical decisions regarding IOP management should consider the limitations of Schiötz tonometry in elderly populations.