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Proceedings Paper

Ex vivo accommodation simulator II: concept and preliminary results
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Paper 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.

Paper Details

Date Published: 13 July 2004
PDF: 11 pages
Proc. SPIE 5314, Ophthalmic Technologies XIV, (13 July 2004); doi: 10.1117/12.539111
Show Author Affiliations
Klaus Ehrmann, Vision Cooperative Research Ctr. (Australia)
Univ. of New South Wales (Australia)
Arthur Ho, Vision Cooperative Research Ctr. (Australia)
Univ. of New South Wales (Australia)
Jean-Marie Parel, Univ. of Miami School of Medicine (United States)
Univ. of Liège, CHU Sart-Tilman (Belgium)


Published in SPIE Proceedings Vol. 5314:
Ophthalmic Technologies XIV
Fabrice Manns; Per G. Soderberg; Arthur Ho, Editor(s)

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