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| University of Rochester | |
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Intraocular ImagingThere have been many studies to investigate what actually causes loss of accommodation with age, also called Presbyopia. To better understand the mechanism of accommodation and how it changes with age, the ability to image the entire segment of the eye including cornea and crystalline lens is very important. The same imaging technique can also assess the feasibility of accommodative intraocular lenses developed to restore accommodation. Three major technologies, Scheimpflug, VHF ultrasound and optical coherence tomography (OCT) have been proposed. Our lab is currently developing an large axial scan depth OCT to achieve images of the anterior segment of the eye from cornea to the posterior lens non-invasively in real time. Our OCT system uses similar techniques proposed by Huber et al. (Optics Express, 2005) which employ Fourier domain mode locking laser to sweep wavelength for a swept–source OCT system. This OCT system equipped with a customized scanning system can provide a large axial scanning depth at high speed. We will also combine the OCT with a real time wavefront sensor. Both OCT and wavefront measurements will be performed with infrared lights. Therefore, stimulating accommodation can be obtained naturally. | |
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