Refraction of the Eye
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منابع مشابه
Prediction of Refractive Outcome of Second Eye with Partial Adjustment of Intraocular Lens Power of the First Eye
Background and Objective: This study aimed at comparing the results of refractive cataract surgery in patients undergoing sequential surgeries in both eyes. Considering the preoperative refraction and final refraction of the first eye, it is possible to correct the refrative result of cataract surgery using the adjustment of the second eye intraocular lens (IOL) power. Materials and Methods: T...
متن کاملUnusual Presentation of Hypertropia in a Case of Anisometropic Heavy Eye Syndrome
Purpose: To report the presence of hypertropia with esotropia in the case of anisometropic Heavy Eye Syndrome (HES). Case Report: A 33-years old lady referred to the strabismus clinic for evaluation. The patientchr('39')s esotropia started at the age of 12 and gradually increased. Corrected visual acuity was 2/10 and 4/100 and refraction was -24-3.25×103 and -10.25-0.75× 34 in the right and lef...
متن کاملبررس مقایسه ای اثرات داروهای سیکلوپلژیک در ریفرکشن بالینی
Accurate measurement of refractive error in uncooperative patients and young children, requires cycloplegia. The aim of the present study was to determine whethere cyclopentolate by itself or in combination with 4 times instillation of atropine can be used as a substitute for 10 times instillation of atropine. From 1994 to 1996, 39 patients aged 2-12 years were included in this study. Cyclopleg...
متن کاملPostoperative Refraction in the Second Eye Having Cataract Surgery
Introduction. Previous cataract surgery studies assumed that first-eye predicted and observed postoperative refractions are equally important for predicting second-eye postoperative refraction. Methods. In a retrospective analysis of 173 patients having bilateral sequential phacoemulsification, multivariable linear regression was used to predict the second-eye postoperative refraction based on ...
متن کاملRefraction at the Interface of a Lossy Metamaterial
The refraction phenomenon at the interface of an ordinary material and a lossy metamaterial has been investigated. For oblique incidence on the lossy metamaterial, the planes of constant amplitude of the refracted wave are parallel to the interface and the plane of constant phases make a real angle with the interface (real refraction angle). The real refraction angle and hence, the real refract...
متن کاملThe influence of oblique viewing on axial and peripheral refraction for emmetropes and myopes.
Refraction may be affected by the forces of lids and extraocular muscles when eye direction and head direction are not aligned (oblique viewing) which might potentially influence past findings on peripheral refraction of the eye. We investigated the effect of oblique viewing on axial and peripheral refraction. In a first experiment, cycloplegic axial refractions were determined when subjects' h...
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