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Applanation tonometry in contact lens practice
Journal of the American Optometric Association
|March 1, 1987
Summary
A new dye, Fluorexon, prevents soft contact lens staining during Goldmann tonometry. This study compares Fluorexon to standard fluorescein dye, offering a better solution for eye care professionals.
Area of Science:
- Ophthalmology
- Optometry
- Biomaterials
Background:
- Tonometry is crucial for diagnosing glaucoma and monitoring intraocular pressure.
- Goldmann applanation tonometry is a standard method, but fluorescein dye stains soft contact lenses.
- This staining complicates accurate pressure measurements in soft contact lens wearers.
Purpose of the Study:
- To evaluate Fluorexon as a non-staining alternative to fluorescein sodium for Goldmann tonometry.
- To compare the efficacy and safety of Fluorexon versus fluorescein sodium in soft contact lens patients.
Main Methods:
- A comparative study was designed using Goldmann applanation tonometry.
- Fluorexon and fluorescein sodium were administered to separate groups of soft contact lens patients.
- Intraocular pressure measurements and lens staining were assessed for both techniques.
Main Results:
- Fluorexon did not cause permanent staining of soft contact lenses.
- Preliminary data suggests comparable tonometry readings between Fluorexon and fluorescein sodium.
- Further analysis of test methods and results is ongoing.
Conclusions:
- Fluorexon offers a viable, non-staining alternative for tonometry in soft contact lens patients.
- This dye substitution may improve the clinical management of intraocular pressure in this patient group.
- The modified Goldmann procedure with Fluorexon warrants further investigation and adoption.