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Effect of timolol on the amplitude and dynamics of accommodation
J Weber1, A E Tuinenburg, G L van der Heijde
1Department of Medical Physics, Free University, Amsterdam, The Netherlands.
Documenta Ophthalmologica. Advances in Ophthalmology
|August 1, 1989
Abstract:
There is still debate about whether the ciliary muscle is innervated by the sympathetic nervous system. We investigated the amplitude and the dynamics of accommodation under influence of the non-selective beta-blocker timolol. For this purpose the variations in thickness of the human lens during step-like changes in accommodation were measured with high-resolution A-scan echography. Results showed that the dynamics of accommodation, expressed in the time constants of the response, were affected as well as the amplitude.