Results 91 to 100 of about 6,813 (261)
Surgically induced astigmatism in the scleral fixated ‘Carlevale’ IOL technique
Acta Ophthalmologica, Volume 102, Issue 8, Page 897-905, December 2024.Abstract Purpose To evaluate the surgically induced astigmatism over a 6‐month follow‐up period in patients who underwent scleral IOL fixation using an acrylic single‐piece IOL with special haptics designed for sutureless scleral fixation. Methods We conducted a prospective longitudinal study at a single site with a single surgeon. We included patients
Markus Schranz +5 more
wiley +1 more source
How Can We Improve Toric Intraocular Lens Calculation Methods? Current Insights
Clinical Ophthalmology, 2020 Tiago B Ferreira,1 Filomena Ribeiro1– 3 1Hospital Da Luz Lisboa, Lisbon, Portugal; 2Faculdade De Medicina Da Universidade De Lisboa, Lisbon, Portugal; 3Visual Sciences Research Centre, University of Lisbon, Lisbon, PortugalCorrespondence: Tiago B ...
Ferreira TB, Ribeiro F
doaj
Variación del astigmatismo corneal inducido por cirugía de catarata en función de la incisión límbica [PDF]
, 2015 Propósito: Hoy en día el objetivo de la cirugía de cataratas no es solo extraer el cristalino opacificado, sino también emetropizar al paciente, reduciendo su refracción en lo posible, mediante la implantación de lentes intraoculares o reduciendo o ...
Castillejo Santos, Ana
core +1 more source
Visual acuity analysis on the phakic lenses implantation in high myopia [PDF]
, 2015 Introdução – Na correção de miopias elevadas, a cirurgia por implante de lente intraocular fáquica tem tido progressivamente uma maior adesão em relação à cirurgia por laser.
Alves, Neusa +4 more
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Impact of astigmatism and high-order aberrations on subjective best focus [PDF]
, 2015 12 págs.; 9 figs.; 1 tab.© 2015 ARVO. We studied the role of native astigmatism and ocular aberrations on best-focus setting and its shift upon induction of astigmatism in 42 subjects (emmetropes, myopes, hyperopes, with-the-rule [WTR] and against-the ...
Dorronsoro, Carlos +5 more
core +1 more source
A Direct Method for Determining Toricity Ratios of Toric Intraocular Lens Calculators
Scientific Reports, 2018 AbstractThis study develops a method to determine toricity ratios used by arbitrary toric intraocular lens calculators. Access to this information allows for the improvement of refractive results. We derive the Sayegh-Gabra formula, which uses input and output parameters in a toric calculator to extract toricity ratios that are typically not disclosed.
Gabra, Lauren G., Sayegh, Samir I.
openaire +2 more sources
Clinical Ophthalmology, 2016 Hatem Ammar, Mohamed Anbar, Marwa M Abdellah Department of Ophthalmology, Faculty of Medicine, Sohag University, Sohag, Egypt Purpose: To compare the efficacy and outcome of phakic toric implantable collamer lens (TICL) and refractive clear lens ...
Ammar H, Anbar M, Abdellah MM
doaj
Comparison of the Visual Outcomes of an Extended Depth-of-Focus Lens and a Trifocal Lens
Clinical Ophthalmology, 2021 Majid Moshirfar,1– 3 James Ellis,4 Daniel Beesley,5 Shannon E McCabe,1,6 Adam Lewis,7 William B West Jnr,4 Yasmyne Ronquillo,1 Phillip Hoopes Snr1 1Hoopes Vision Research Center, Hoopes Vision, Draper, UT, USA; 2John A.
Moshirfar M +7 more
doaj
Türk Oftalmoloji Dergisi, 2012 Pur po se: To report the results of phacoemulsification and toric intraocular lens (IOL) implantation in patients with cataract and high astigmatism. Ma te ri al and Met hod: Medical records of 21 eyes of 17 patients (6 men, 11 women) with 1,5 diopter (
İlkay Kılıç +3 more
doaj +1 more source
Focused and defocused retinal images with Bessel and axicon pupil functions. [PDF]
, 2020 Retinal image light distributions in a standard optical model of a diffraction-limited eye with round pupils are presented for several patterns of amplitude and phase modulation of the light admitted into the eye.
Westheimer, Gerald
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