کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
506037 | 864555 | 2007 | 16 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Dynamic performance of accommodating intraocular lenses in a negative feedback control system: A simulation-based study Dynamic performance of accommodating intraocular lenses in a negative feedback control system: A simulation-based study](/preview/png/506037.png)
A dynamic model of ocular accommodation is used to simulate the stability and dynamic performance of accommodating intraocular lenses (A-IOLs) that replace the hardened natural ocular lens that is unable to change focus. Accommodation simulations of an older eye with A-IOL materials having biomechanical properties of a younger eye illustrate overshoots and oscillations resulting from decreased visco-elasticity of the A-IOL. Stable dynamics of an A-IOL are restored by adaptation of phasic and tonic neural-control properties of accommodation. Simulations indicate that neural control must be recalibrated to avoid unstable dynamic accommodation with A-IOLs. An interactive web-model of A-IOL illustrating these properties is available at http://schorlab.berkeley.edu.
Journal: Computers in Biology and Medicine - Volume 37, Issue 7, July 2007, Pages 1020–1035