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Goldmann tonometry and fluorescein solution: a way to avoid contact lens staining
1Department of Ophthalmology, Louisiana State University, Shreveport 71130-3932.
Summary
A new Goldmann tonometry method using minimal fluorescein prevents contact lens staining. This accurate technique measures intraocular pressure (IOP) effectively before fitting soft contact lenses.
Area of Science:
- Ophthalmology
- Optometry
Background:
- Standard Goldmann tonometry uses fluorescein dye, which can stain soft contact lenses.
- Accurate intraocular pressure (IOP) measurement is crucial for eye health assessment.
Purpose of the Study:
- To evaluate a modified Goldmann tonometry technique minimizing fluorescein application.
- To assess the accuracy and contact lens staining potential of the new method.
Main Methods:
- A novel technique applying minimal fluorescein to the applanation cone tip using coated tissue paper.
- Comparison of IOP measurements between the standard and modified methods.
- Examination of soft contact lenses for staining after IOP measurement using the modified method.
Main Results:
- No statistically significant difference in IOP measurements between the standard and modified Goldmann tonometry methods.
- No fluorescein staining was observed in soft contact lenses after using the modified technique.
Conclusions:
- The modified Goldmann tonometry method is accurate for IOP measurement.
- This technique effectively prevents fluorescein staining of soft contact lenses, making it suitable for pre-fitting IOP assessment.