Results 91 to 100 of about 49,042 (227)

Safety and efficacy of intraocular lenses in cataract and refractive surgery [PDF]

, 2021
There is a global rise in the number of people with high myopia. These patients rely heavily on glasses or contact lenses, and rarely qualify for laser refractive surgery.
Jonker, Soraya Maria Regina
core   +2 more sources

Acute clouding of trifocal lens during implantation: a case report

BMC Ophthalmology, 2017
Background Intraoperative IOLs clouding of several kinds of hydrophilic acrylic intraocular lenses (IOLs) have been reported due to temperature changes. This phenomenon reported previously occurred in cold countries and during the winter months. However,
Qian Liu, Suhua Zhang, Xiaogang Wang, Weifang Cao, Yading Jia   +4 more
doaj   +1 more source

Validation of a method to measure light distortion surrounding a source of glare [PDF]

, 2015
Our objective was to validate a new device dedicated to measure the light disturbances surrounding bright sources of light under different sources of potential variability. Twenty subjects were involved in the study. Light distortion was measured using
Araújo, Rute Juliana Ferreira Macedo, González-Méijome, José Manuel, Neves, Helena Isabel Ferreira, Queirós, A., Rico-del-Viejo, L., Silva, Ana Carolina   +5 more
core   +1 more source

Long-Term Efficacy, Visual Performance and Patient Reported Outcomes with a Trifocal Intraocular Lens: A Six-Year Follow-up [PDF]

, 2021
(1) Background: To evaluate the efficacy at 6 years postoperative after the implantation of a trifocal intraocular lens (IOL) AT Lisa Tri 839MP. The secondary objective was to evaluate the contrast sensitivity defocus curve (CSDC), light distortion ...
Burguera, Noemi, Fernández, Joaquín, Martínez, Javier, Piñero, David P., Rodríguez-Vallejo, Manuel   +4 more
core   +1 more source

Visual Outcomes and Patient Satisfaction After Implantation of Enhanced Versus Standard Monofocal Intraocular Lenses With a Myopic Target Refraction: A Retrospective Comparative Study

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
Purpose To compare the clinical outcomes of enhanced monofocal IOL (Eyhance) and monofocal IOL (TECNIS) implantation in cataract patients whose target refraction is myopia. Methods This is a retrospective chart review for patients who underwent cataract surgery and whose target refraction is myopia (−3 D).
Kyung-Sun Na, Jiyoung Emily Lee, Phil Kyu Lee, Hyun Seung Kim, Eun Chul Kim, Antonio Benito   +5 more
wiley   +1 more source

Case Report: Unique case of lens replacement in high hyperopia with trifocal lens and piggyback light-adjustable lens implantation

Frontiers in Ophthalmology
Managing high hyperopia is notably challenging due to the unpredictability of refractive outcomes. Moreover, the technical difficulties of surgery in patients with smaller eyes, compounded by the limitations in available intraocular lens (IOL) powers in ...
Amirmohammad Shafiee, Arsalan A. Ali, Anirudh Gadicherla, Taj Nasser, Taj Nasser   +4 more
doaj   +1 more source

Postoperative visual performance with a bifocal and trifocal diffractive intraocular lens during a 1-year follow-up [PDF]

International Journal of Ophthalmology, 2017
AIM: To evaluate and compare the clinical outcomes with a diffractive bifocal and trifocal intraocular lens (IOL) during a 12-month follow-up. METHODS: Prospective comparative study including 75 eyes of 38 patients (44-70y) undergoing uneventful ...
Peter Mojzis, Lucia Kukuckova, Katarina Majerova, Peter Ziak, David P. Piñero   +4 more
doaj   +1 more source

Presbyopia Correction in Lens Replacement Surgery: A Review

Clinical &Experimental Ophthalmology, Volume 53, Issue 6, Page 668-681, August 2025.
ABSTRACT Presbyopia affects approximately 1.8 billion individuals globally, posing significant challenges as life expectancy and near‐vision demands, particularly with mobile phone use, grow. Addressing presbyopia during lens replacement surgery has become a key focus for cataract surgeons, aiming to reduce dependence on corrective eyewear. This review
Benjamin Stern, Damien Gatinel
wiley   +1 more source

The Homburg‐Adelaide toric IOL nomogram: How to predict corneal power vectors from preoperative IOLMaster 700 keratometry and total corneal power in toric IOL implantation

Acta Ophthalmologica, Volume 103, Issue 1, Page e19-e30, February 2025.
Abstract Purpose The purpose of this study is to compare the reconstructed corneal power (RCP) by working backwards from the post‐implantation spectacle refraction and toric intraocular lens power and to develop the models for mapping preoperative keratometry and total corneal power to RCP.
Achim Langenbucher, Nóra Szentmáry, Jascha Wendelstein, Alan Cayless, Peter Hoffmann, Michael Goggin   +5 more
wiley   +1 more source

Optical design and performance of a trifocal sinusoidal diffractive intraocular lens

Biomedical Optics Express, 2021
Two theoretical sinusoidal diffractive profile models to build up a trifocal intraocular lens (IOL) are analysed. Topographic features of the diffractive zones such as their shape, step height and radii, as well as the energy efficiency (EE) of the foci, depends on the particular model, and are compared to the ones experimentally measured in a trifocal
Fidel Vega, Maite Valentino, Franco Rigato, María S. Millán   +3 more
openaire   +2 more sources