Results 11 to 20 of about 60,557 (267)

Evaluation of Barrett universal II formula for intraocular lens power calculation in Asian Indian population

open access: yesIndian Journal of Ophthalmology, 2020
Purpose: Barrett Universal II (BU-II) is considered as one of the most accurate intraocular lens (IOL) power calculation formulas; however, there is no literature studying the same in Indian population.
Nikhil Kuthirummal   +6 more
doaj   +1 more source

Comparison of visual performance recovery after thin-flap LASIK with 4 femtosecond lasers [PDF]

open access: yesInternational Journal of Ophthalmology, 2017
AIM: To compare the speed of visual recovery following myopic thin-flap LASIK with four femtosecond lasers. METHODS: Eighty-eight eyes of 46 patients who were consecutively scheduled for bilateral LASIK with the IntraLase FS60 (Group 1), Femto LDV ...
Jing Zhang   +3 more
doaj   +1 more source

Effect of Capsular Tension Ring Implantation during Phacoemulsification on Postoperative Refraction

open access: yesOftalʹmologiâ, 2022
Purpose. To assess refractive result of phacoemulsification (PE) with capsular tension ring (CTR) implantation.Patients and methods. In total, 37 eyes of 37 patients who underwent PE with intraocular lens (IOL) implantation were divided into 2 groups ...
D. F. Belov, V. P. Nikolaenko
doaj   +1 more source

Assessment of the Clinical Effectiveness of DRL Orthokeratology Lenses vs. Single-Vision Spectacles in Controlling the Progression of Myopia in Children and Teenagers: 2 Year Retrospective Study

open access: yesChildren, 2023
The purpose of this study was to assess the effect of orthokeratology treatment with DRL lenses on the control of myopia progression compared with single vision glasses users (monofocal glasses).
António Queirós   +9 more
doaj   +1 more source

Autorefraction, Retinoscopy, Javal’s Rule, and Grosvenor’s Modified Javal’s Rule: The Best Predictor of Refractive Astigmatism

open access: yesJournal of Ophthalmology, 2016
The aim of the study was to determine the level of agreement between Javal’s rule, autorefraction, retinoscopy, and refractive astigmatism and to determine which technique is the most suitable substitute when subjective refraction is not applicable using
Kofi Asiedu   +2 more
doaj   +1 more source

Effects of age and Refractive Errors on Stereopsis

open access: yesTürk Oftalmoloji Dergisi, 2011
Pur po se: To investigate the effects of age and refractive errors on stereopsis. Ma te ri al and Met hod: The present study included 1488 cases which were randomly selected, had full vision and no eye pathology except refractive errors.
Aykut Arslan Yıldız   +1 more
doaj   +1 more source

Wave Trajectory Study on the Coast of Lhoknga, Aceh Besar, Indonesia: A Numerical Model Approach

open access: yesCivil Engineering Dimension, 2018
A numerical model of wave trajectory using shoaling and refraction formula was proposed in the coastal waters of Lhoknga, Aceh Besar, Indonesia. The developed model used a two dimensional (2D) numerical methods for wave trajectory with the input of wave ...
Ichsan Setiawan, Mohammad Irham
doaj   +1 more source

Short-term refractive and ocular parameter changes after topical atropine

open access: yesTaiwan Journal of Ophthalmology, 2020
PURPOSE: The purpose of this study is to explore short-term refractive and ocular parameter changes and their correlations after cycloplegia with atropine.
Min-Chieh Ho   +4 more
doaj   +1 more source

REFRACTION IN SCHOOLS. [PDF]

open access: yesJAMA: The Journal of the American Medical Association, 1895
This is an age of prevention rather than of cure. The greatest efforts are being made to cure disease before disease occurs. Can anything more distinctly exemplify the disinterestedness of the physician than his earnest and unremitting efforts towards prophylactic medicine?
openaire   +1 more source

Controlling Refraction Using Sub-Wavelength Resonators

open access: yesApplied Sciences, 2018
We construct metamaterials from sub-wavelength nonmagnetic resonators and consider the refraction of incoming signals traveling from free space into the metamaterial.
Yue Chen, Robert Lipton
doaj   +1 more source

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