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Title

Quantitative anterior segment optical coherence tomography

AuthorsOrtiz, Sergio ; Marcos, Susana
KeywordsThreeDimensional Image Acquisition
Ophthalmic Instrumentation.
Optical Instruments
Surface Measurements
Optical Coherence Tomography
Visual Optics
Issue Date2014
PublisherSociedad Española de Óptica
CitationOptica Pura y Aplicada 47: 227- 238 (2014)
Abstract© Sociedad Española de óptica. We present in this paper the quantification of the geometrical features of the anterior segment of the eye using Anterior Segment Optical Coherence Tomography (AS-OCT). This quantification was achieved by following our own developed methodology including the device development and their distortion calibration (Fan and refraction) for 3-D imaging, and automatic analysis tools as well. The stastistical comparison of the corrected topographies of the anterior cornea with topographies from state-of-the art clinical topography systems represents a valuable contribution toward the development >All-OCT-based> topographic systems. In addition, we first reported topographies of the crystalline lens in vivo, which is a promising tool to investigate the lens optical properties, the contribution of the lens to the overall retinal image quality, and understanding the change of the physical properties of the lens with accommodation and aging. Furthermore, our quantitative AS-OCT allowed the analysis of the keratoconic cornea and the changes produced by Intra Corneal Ring Segment (ICRS) treatment, as well as monitoring of the ICRS 3-D location. Finally, OCT-based biometry we present in this paper is a promising tool to investigate the changes after cataract surgery; the contribution of the (Intra Ocular Lens) IOL location and tilt to the overall retinal image quality, and in the design of new IOLs.
URIhttp://hdl.handle.net/10261/111596
DOIhttp://dx.doi.org/10.7149/OPA.47.3.227
Identifiersdoi: 10.7149/OPA.47.3.227
issn: 2171-8814
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