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[Effect of topical carteolol on visual function in normal-tension glaucoma]
H Maeda1, Y Tanaka, M Yamamoto
1Department of Ophthalmology, Kobe University School of Medicine, Hyougo-ken, Japan.
Nippon Ganka Gakkai Zasshi
|March 1, 1997
Summary
Carteolol hydrochloride effectively lowers intraocular pressure in normal-tension glaucoma (NTG) patients. This treatment helps preserve visual field function by reducing optic nerve head vasoconstriction and improving ocular circulation.
Area of Science:
- Ophthalmology
- Pharmacology
Context:
- Normal-tension glaucoma (NTG) is a progressive optic neuropathy.
- Maintaining ocular perfusion is crucial for preventing visual field deterioration in NTG.
Purpose:
- To evaluate the efficacy of carteolol hydrochloride in preserving visual function in NTG patients.
- To assess the impact of carteolol on intraocular pressure and visual field parameters over 18 months.
Summary:
- A study involving 22 NTG eyes compared topical 2% carteolol hydrochloride b.i.d. with an unmedicated control group.
- Carteolol treatment significantly reduced intraocular pressure and showed a trend towards less mean deviation progression.
- A notable reduction in corrected pattern standard deviation increase was observed in the carteolol group, indicating visual field stability.
Impact:
- Carteolol hydrochloride demonstrates effectiveness in inhibiting visual field deterioration in NTG.
- The drug's benefits are linked to reduced intraocular pressure, enhanced ocular perfusion, and intrinsic sympathomimetic activity mitigating optic nerve head vasoconstriction.