Weber J, Tuinenburg A E, van der Heijde G L
Department of Medical Physics, Free University, Amsterdam, The Netherlands.
Doc Ophthalmol. 1989 Aug;72(3-4):41-7. doi: 10.1007/BF00153502.
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.
关于睫状肌是否受交感神经系统支配仍存在争议。我们研究了非选择性β受体阻滞剂噻吗洛尔影响下的调节幅度和调节动力学。为此,我们使用高分辨率A扫描超声检查测量了调节呈阶梯状变化时人晶状体厚度的变化。结果表明,以反应时间常数表示的调节动力学以及调节幅度均受到了影响。