Results 21 to 30 of about 13,274 (216)

Refractive change following pseudophakic vitrectomy: a retrospective review [PDF]

open access: yes, 2008
Background To assess the occurrence and magnitude of refractive change in pseudophakic eyes undergoing 20 gauge pars plana vitrectomy without scleral buckling and to investigate possible aetiological factors.
Anthony Hildreth   +19 more
core   +5 more sources

Posterior corneal surface stability after femtosecond laser-assisted keratomileusis [PDF]

open access: yes, 2015
The purpose of this study was to evaluate posterior corneal surface variation after femtosecond laser-assisted keratomileusis in patients with myopia and myopic astigmatism. Patients were evaluated by corneal tomography preoperatively and at 1, 6, and 12
Cagini, Carlo   +6 more
core   +3 more sources

Comparison of asymmetric offset versus pupil centered ablation in refractive surgery [PDF]

open access: yesInternational Journal of Ophthalmology
AIM: To compare the visual and optical outcomes following femtosecond laser in situ keratomileusis (FS-LASIK) using an aberration neutral profile with asymmetric offset (AO) and pupil center (PC) treatments.
Hassan Hashemi   +4 more
doaj   +1 more source

Eyelid squinting improves near vision in against-the-rule and distance vision in with-the-rule astigmatism in pseudophakic eyes: an eye model experimental study

open access: yesBMC Ophthalmology, 2020
Background To elucidate whether eyelid squinting improves near and distance vision in against-the-rule (ATR) and with-the-rule (WTR) simple myopic astigmatism in pseudophakic eyes. Methods A refraction-model eye was mounted on a wavefront analyzer.
Jay Won Rhim   +5 more
doaj   +1 more source

Identical twins with “mirror image” anisometropia and esotropia [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2011
Introduction. Identical twins account for 0.2% of the world population and 8% of all twins. A “mirror image” variation can be found in 25% of identical twins.
Stanković-Babić Gordana   +2 more
doaj   +1 more source

Age- and gender-related characteristics of astigmatism in a myopic population

open access: yesFrontiers in Medicine, 2022
PurposeTo explore age- and gender-related differences of refractive and corneal astigmatism in myopic patients looking for refractive surgery.DesignA retrospective cross-sectional study.Materials and methodsThe medical files of candidates looking for ...
Shan Yang, Yang Jiang, Ge Cui, Ying Li
doaj   +1 more source

Eye shape and retinal shape, and their relation to peripheral refraction [PDF]

open access: yes, 2012
Purpose: We provide an account of the relationships between eye shape, retinal shape and peripheral refraction. Recent findings: We discuss how eye and retinal shapes may be described as conicoids, and we describe an axis and section reference system for
Atchison, David   +4 more
core   +2 more sources

Ocular Refraction at Birth and Its Development During the First Year of Life in a Large Cohort of Babies in a Single Center in Northern Italy [PDF]

open access: yes, 2020
The purpose of this study was to investigate refraction at birth and during the first year of life in a large cohort of babies born in a single center in Northern Italy.
Bartollino S.   +7 more
core   +1 more source

Polar Value Analysis of Low to Moderate Astigmatism with Wavefront-Guided Sub-Bowman Keratomileusis

open access: yesJournal of Ophthalmology, 2017
Purpose. To evaluate the astigmatic outcomes of wavefront-guided sub-Bowman keratomileusis (WFG-SBK) for low to moderate myopic astigmatism. Methods. This study enrolled 100 right eyes from 100 patients who underwent WFG-SBK for the correction of myopia ...
Pisong Yan, Zhiyu Du, Yu Zhang
doaj   +1 more source

Small incision lenticule extraction (SMILE) in the correction of myopic astigmatism: outcomes and limitations - an update

open access: yesEye and Vision, 2017
Small Incision Lenticule Extraction (SMILE) is a flap-free intrastromal technique for the correction of myopia and myopic astigmatism. To date, this technique lacks automated centration and cyclotorsion control, so several concerns have been raised ...
Jorge L. Alió del Barrio   +3 more
doaj   +1 more source

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