Results 121 to 130 of about 764,618 (384)

Intraocular Lens (IOL) Materials

open access: yes, 2020
In 1949, first intraocular lens (IOL) insertion after cataract surgery was performed by Sir Harold Ridley, in London. Only in the 1970s, the IOL insertion after cataract surgery began to be a standard procedure. The material the first IOL-s were composed of was polymethyl methacrylate (PMMA). The PMMA is a rigid material and the corneal incision had to
Robert Stanić   +3 more
openaire   +5 more sources

Influence of artificial tears on corneal parameter measurement using three different devices: Keratometry and Scheimpflug technology, a randomized trial

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To evaluate the effect of artificial tear (AT) application on the repeatability of corneal parameters with three different devices. Methods In this prospective, randomized clinical trial, 145 patients were measured with one of three devices in the Department of Ophthalmology, Goethe University, Frankfurt, Germany.
Titus Schug   +3 more
wiley   +1 more source

Considerations on the Haigis formula: Are better outcomes possible with tuning?

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To design a vergence‐based lens power formula based on the classical Haigis formula for better outcomes while retaining the original formula architecture. Methods Four new formula variants (A–D) incorporating a sum of segments correction for axial length, harmonic mean of corneal radii instead of arithmetic mean (all variants), and ...
Achim Langenbucher   +5 more
wiley   +1 more source

Rapid assessment for prioritisation of trachoma control at community level in one district of the Kaolack Region, Senegal.

open access: yes, 2005
The objective of this study was to use a modified Lot Quality Assurance Sampling methodology to classify communities according to prevalence of active trachoma and to estimate the prevalence of trachoma and trichiasis in Nioro department, Kaolack Region,
Bailey, Robin   +3 more
core   +1 more source

Aqueous humour concentrations of HB‐EGF, EGF and VEGF‐A and axial length in humans

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To investigate relationships between the intraocular concentrations of heparin‐binding epidermal growth factor (HB‐EGF), epidermal growth factor (EGF) and vascular endothelial growth factor A (VEGF‐A) in dependence on axial length in humans. Design Clinical interventional cohort study.
Wen‐Da Zhou   +8 more
wiley   +1 more source

Comparison of the Residual Amount of an Ophthalmic Viscosurgical Device Among Different Types of Intraocular Lens Implants in vitro

open access: yesClinical Ophthalmology
Tetsutaro Oki, Hiroshi Horiguchi, Ryo Terauchi, Hisato Gunji, Tadashi Nakano Department of Ophthalmology, The Jikei University School of Medicine, Minatoku, Tokyo, 105-8461, JapanCorrespondence: Tetsutaro Oki, Department of Ophthalmology, The Jikei ...
Oki T   +4 more
doaj  

Custom-Made Artificial Iris and Toric-Intraocular Lens Intrascleral Flange Fixation: A Case Report

open access: yesMedicina
Different techniques for artificial iris implantation with or without an intraocular lens, depending on lens status, are described in the literature.
Ran Moshkovsky   +2 more
doaj   +1 more source

Effect of anticholinergic eye drops on intraorbital, periorbital and brain pulsation power

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose The study aims to investigate the effect of pharmacologically reducing parasympathetic activity on ocular and cerebral pulsations, inspired by recent discoveries of a glymphatic‐like system in the eye driven by physiological pulsations.
Seyed Mohsen Ebrahimi   +8 more
wiley   +1 more source

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