Ex vivo accommodation simulator II: concept and preliminary results

Klaus Ehrmann; Arthur Ho; Jean-Marie Parel

doi:10.1117/12.539111

13 July 2004 Ex vivo accommodation simulator II: concept and preliminary results

Klaus Ehrmann, Arthur Ho, Jean-Marie Parel

Proceedings Volume 5314, Ophthalmic Technologies XIV; (2004) https://doi.org/10.1117/12.539111
Event: Biomedical Optics 2004, 2004, San Jose, CA, United States

Abstract

A new instrument was developed to simulate the accommodation of excised human and animal crystalline lenses. The sclera is attached to 8 radially arranged translation stages and dissected into 8 segments. Change in accommodation is simulated by pulling and releasing the scleral segments, varying the load on the zonules and the capsular bag. Each translation stage is equipped with a sensitive force transducer for simultaneous recording of load and displacement. Additionally, changes in optical power, lens diameter, lens thickness and lens shape can be observed and quantified while the lens is stretched and released. The sensitivity and accuracy of the instrument was verified using steel springs and elastic bands. Preliminary results from sensitivity testing and instrument calibration are presented.

Citation Download Citation

Klaus Ehrmann, Arthur Ho, and Jean-Marie Parel "Ex vivo accommodation simulator II: concept and preliminary results", Proc. SPIE 5314, Ophthalmic Technologies XIV, (13 July 2004); https://doi.org/10.1117/12.539111

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