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J. Shen, D.M. O'Day; In Vitro Test of an Accommodative Intraocular Lens . Invest. Ophthalmol. Vis. Sci. 2003;44(13):255.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: The purpose of this study is to conduct in vitro test of a prototype accommodative intraocular lens. Methods: The accommodative IOL consisted of eight symmetrically arranged eccentric "Gaussian lenses", which were mounted on an elastic thin wire frame. These Gaussian lenses were almost overlapped but just about 0.5 mm off center. Each Gaussian lens could be pushed toward center when the ciliary muscle squeezed the outer diameter of the elastic wire frame. When the Gaussian lenses were pushed more overlap, the focusing power of the combined lens would be increased. An eyeball simulation system was used to test the accommodative IOL. The diameter of the IOL could be adjusted by a remote controlled iris diaphragm. By changing the diameter of the iris diaphragm, the outer diameter of the IOL could be adjusted, and the focus distance of the IOL on the simulated retina could be measured. Results: When the outer diameter of the accommodative IOL changes 0.8 mm, the focusing distance of the IOL changed 1.1 mm on the simulated retina. Conclusions: The prototype intraocular lens could produce effective accommodative result.
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