Results 1 to 10 of about 7,247 (289)
Aim: The aim of this study is to determine the agreement between applanation ultrasound biometry (AUB) and optical biometry using Lenstar 900 for precataract surgery axial length measurement and intraocular lens (IOL) power estimation and their effect on
Merine Paul
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Computing Retinal Contour from Optical Biometry [PDF]
To describe a new methodology that derives horizontal posterior retinal contours from partial coherence interferometry (PCI) and ray tracing using the corneal topography.Corneal topography and PCI for seven horizontal visual field eccentricities correspondent to the central 60 degrees of the posterior pole were obtained in 55 myopic eyes.
Ribeiro, Miguel António Faria +5 more
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Purpose Precise ocular measurements are fundamental for achieving excellent target refraction following both cataract surgery and refractive lens exchange. Biometry devices with swept-source optical coherence tomography (SS-OCT) employ longer wavelengths
Piotr Kanclerz +2 more
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Background Inaccurate biometry can lead to the wrong intraocular lens implantation and result in refractive surprise following cataract surgery. It is important to be sceptical of biometry results that do not match the refractive or clinical picture and ...
Francis Carr, Vinod Gangwani
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Eye Biometry Shift after Scleral Buckling Procedure
Background. There are a great number publications presenting results of various types of optical and ultrasound biometry before and after scleral buckling (SB).Patients and methods.
A. N. Kulikov +2 more
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Comparison of ultrasonic pachymetry, with a new optical biometry and tono-pachymetry
The aim of this study was to compare the measurements of central corneal thickness (CCT) using the CT-1P tonopachymetry and AL-Scan optical biometry with those obtained with ultrasound (US) pachymetry. In this prospective study, CCTs were measured in 100
Haci Murat Sagdik +3 more
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Refractive Outcome after Phacoemulsification Using Optical Biometry versus Immersion Ultrasound Biometry [PDF]
Purpose: To compare refractive outcome after phacoemulsification using optical biometry versus immersion ultrasound biometry (US) .Patients and methods: A prospective, comparative, non-randomized interventional study included 100 eyes divided into 2 groups: Group (A): (Immersion US biometry) included 50 eyes.
Fatma A. Atwa +3 more
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Comparison of Mean Axial Length Measured by Acoustic Biometry versus Optical Biometry
Purpose: To compare the mean axial length measured by acoustic biometry with optical biometry. Design: Descriptive observational study. Place and Duration of Study: Department of Ophthalmology Liaquat National Hospital and Medical College, Karachi from November 2018 to April 2019. Methods: were 246 patients with visually ...
Munira Shakir +4 more
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Gender differences in refraction prediction error of five formulas for cataract surgery
Objectives To evaluate gender differences in optical biometry measurements and lens power calculations. Methods Eight thousand four hundred thirty-one eyes of five thousand five hundred nineteen patients who underwent cataract surgery at University of ...
Yibing Zhang +3 more
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Wavefront Derived Refraction and Full Eye Biometry in Pseudophakic Eyes. [PDF]
To assess wavefront derived refraction and full eye biometry including ciliary muscle dimension and full eye axial geometry in pseudophakic eyes using spectral domain OCT equipped with a Shack-Hartmann wavefront sensor.Twenty-eight adult subjects (32 ...
Xinjie Mao +6 more
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