A common lens nuclear area in Scheimpflug photographs
نویسندگان
چکیده
منابع مشابه
Quantitating nuclear opacification in color Scheimpflug photographs.
PURPOSE To test the validity of the color component subtraction method, a new objective technique of measuring nuclear cataract, and to correlate the tangent values of the different degrees of nuclear opacities to their corresponding subjective nuclear cataract grading using the Lens Opacities Classification System II and to another objective method of measuring nuclear cataract. METHODS Dens...
متن کاملScheimpflug lens densitometry and ocular wavefront aberrations in patients with mild nuclear cataract.
PURPOSE To test correlations between Scheimpflug optical densitometry and ocular higher-order aberrations (HOAs) in patients with mild nuclear cataract. SETTING Cornea and Refractive Surgery Department, Hospital de Braga, Braga, Portugal. DESIGN Retrospective single-center study. METHODS In eyes with mild nuclear cataract, lens densitometry was evaluated by Scheimpflug imaging (Pentacam H...
متن کاملSurgical Management and Scheimpflug Analysis of an Atypical Lens Coloboma
A lens coloboma is not a true coloboma; it is just a zonular absence that causes a defect in the lens equator and hence a more spherical lens. It can be isolated or in association with iris, choroid or retinal colobomas. Typically the defect is present at the site of the embryonic fissure, but it can be present elsewhere. This congenital defect can cause amblyopia, especially when it is associa...
متن کاملIntraocular lens alignment from purkinje and Scheimpflug imaging.
The improved designs of intraocular lenses (IOLs) implanted during cataract surgery demand understanding of the possible effects of lens misalignment on optical performance. In this review, we describe the implementation, set-up and validation of two methods to measure in vivo tilt and decentration of IOLs, one based on Purkinje imaging and the other on Scheimpflug imaging. The Purkinje system ...
متن کاملBiometry of phakic intraocular lens using Scheimpflug photography.
PURPOSE To examine lateral and axial positioning of phakic intraocular lenses (IOLs) with iris fixation in the anterior chamber and to examine short-term stability of the IOL position. SETTING The Netherlands Opthalmic Research Institute, Amsterdam, the Netherlands. METHODS Thirty patients participated in the study. Thirty-one eyes were implanted with the 204 type myopia IOL, 14 eyes with t...
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ژورنال
عنوان ژورنال: Eye
سال: 1993
ISSN: 0950-222X,1476-5454
DOI: 10.1038/eye.1993.187