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Full OCT anterior segment biometry: An application in cataract surgery

AuthorsOrtiz, Sergio ; Pérez Merino, Pablo ; Duran, Sonia; Velasco Ocaña, Miriam ; Birkenfeld, J. ; Castro, Alberto de ; Jiménez-Alfaro, Ignacio ; Marcos, Susana
Issue Date2013
PublisherOptical Society of America
CitationBiomedical Optics Express 4: 387-396 (2013)
AbstractIn vivo three-dimensional (3-D) anterior segment biometry before and after cataract surgery was analyzed by using custom highresolution high-speed anterior segment spectral domain Optical Coherence Tomography (OCT). The system was provided with custom algorithms for denoising, segmentation, full distortion correction (fan and optical) and merging of the anterior segment volumes (cornea, iris, and crystalline lens or IOL), to provide fully quantitative data of the anterior segment of the eye. The method was tested on an in vitro artificial eye with known surfaces geometry at different orientations and demonstrated on an aging cataract patient in vivo. Biometric parameters CCT, ACD/ILP, CLT/ILT Tilt and decentration are retrieved with a very high degree of accuracy. IOL was placed 400 οm behind the natural crystalline lens, The IOL was aligned with a similar orientation of the natural lens (2.47 deg superiorly), but slightly lower amounts (0.77 deg superiorly). The IOL was decentered superiorly (0.39 mm) and nasally (0.26 mm). © 2013 Optical Society of America.
Identifiersdoi: 10.1364/BOE.4.000387
issn: 2156-7085
Appears in Collections:(CFMAC-IO) Artículos
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