Results 41 to 50 of about 98,883 (333)

Outcome of cataract surgery in Nigeria: visual acuity, autorefraction, and optimal intraocular lens powers--results from the Nigeria national survey.

, 2010
OBJECTIVE: To describe presenting and corrected visual acuities after cataract surgery in a nationally representative sample of adults. Another objective was to describe refractive errors in operated eyes and to determine the optimal range of intraocular
Gilbert, Clare E, Imam, Abdullahi U, Maini, Raj, Murthy, Gudlavalleti VS, Nigeria National Blindness and Visual Impairment Study Group, Rabiu, Mansur M, Sivasubramaniam, Selvaraj   +6 more
core   +1 more source

Central corneal thickness and anterior chamber depth measurement by Sirius® Scheimpfug tomography and ultrasound [PDF]

, 2013
Background: The purpose of this study was to compare the accuracy of the new Sirius® Scheimpflug anterior segment examination device for measurement of central corneal thickness (CCT) and anterior chamber depth (ACD) with that of CCT measurements ...
Diaz-Rey, José Alberto, González-Méijome, José Manuel, Jorge, Jorge, Rosado, J. L.   +3 more
core   +1 more source

Changes in ocular biometry during short‐term accommodation in children

Ophthalmic & physiological optics, 2020
Near work has been linked with myopia development; however, the underlying mechanism remains unclear. Small increases in axial length during accommodation have previously been reported in adults, and therefore, this study aimed to examine if ...
Rohan P J Hughes, Scott A. Read, M. Collins, Stephen J. Vincent   +3 more
semanticscholar   +1 more source

Prevention and correction of residual refractive errors after cataract surgery

Journal of Clinical Ophthalmology and Research, 2017
Cataract surgery today has become more of a refractive surgery with high patient expectations and demand for independence from glasses. With advances in biometry, precise intraocular lens (IOL) power calculation is the most important step in achieving ...
Jeevan S Ladi
doaj   +1 more source

Wavefront Derived Refraction and Full Eye Biometry in Pseudophakic Eyes. [PDF]

PLoS ONE, 2016
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, James T Banta, Bilian Ke, Hong Jiang, Jichang He, Che Liu, Jianhua Wang   +6 more
doaj   +1 more source

Optical biometry [PDF]

, 2001
Universidade Federal de São Paulo (UNIFESP) Departamento de OftalmologiaUNIFESP, Depto.
Allemann, Norma, Monteiro, Eliana Louza
core   +2 more sources

Technical failure rates for biometry between swept-source and older-generation optical coherence methods: a review and meta-analysis

BMC Ophthalmology, 2023
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, Idan Hecht, Raimo Tuuminen   +2 more
doaj   +1 more source

Biometry and ultrasound evaluation of testicles and accessory glands in Santa Ines rams

Revista Brasileira de Zootecnia
This work aimed to investigate the relationship between echogenicity, testicular biometry, and accessory gland biometry and evaluate the echogenicity pattern of these structures in Santa Ines rams. Fifty-four healthy Santa Ines sheep were classified into
Mariana da Silva Ribeiro, Celia Raquel Quirino, Aylton Bartholazzi Junior, Aline Pacheco   +3 more
doaj   +1 more source

Biometry Protocol [PDF]

, 2003
The purpose of this resource is to measure and classify the plant life at a Land Cover Site to help determine the MUC classification.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Calculation of iris-claw IOL power for correction of late in-the-bag IOL complex dislocation

BMC Ophthalmology, 2017
Background To assess the constants and formula for aphakia correction with iris-claw IOLs to achieve the best refractive status in cases of late in-the-bag IOL complex dislocation. Methods A literature search was performed.
Valentín Huerva, Francisco J. Ascaso, Isabel Caral, Andrzej Grzybowski   +3 more
doaj   +1 more source