Results 41 to 50 of about 578,109 (163)

Apodized diffractive multifocal intraocular lens: AcrySof ReSTOR SN6AD2 +2.5 multifocal intraocular lenses

open access: yes, 2014
The AcrySof ReSTOR® +2.5 D is a multifocal intraocular lens (IOL) available since 2012. The IOL structure is composed of a monofocal central area that can ensure a high amount of light distributed for distance vision and an apodized diffractive region ...
Rodolfo Mastropasqua   +5 more
core   +1 more source

Clinical manifestations of dual‐gene variants in retinitis pigmentosa

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose Retinitis pigmentosa (RP) is an inherited retinal disease (IRD), whereby each affected individual typically harbours pathogenic variants in a single causative gene, yet the disorder exhibits marked genetic heterogeneity, with more than 100 genes reported to underlie RP.
Lasse Wolfram   +11 more
wiley   +1 more source

Error induced by the estimation of the corneal power and the effective lens position with a rotationally asymmetric refractive multifocal intraocular lens [PDF]

open access: yesInternational Journal of Ophthalmology, 2015
AIM:To evaluate the prediction error in intraocular lens (IOL) power calculation for a rotationally asymmetric refractive multifocal IOL and the impact on this error of the optimization of the keratometric estimation of the corneal power and the ...
David P. Piñero   +4 more
doaj   +1 more source

Regional growth kinetics of geographic atrophy in age‐related macular degeneration with and without fovea‐sparing

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose Fovea‐sparing geographic atrophy (GA) patients retain near‐normal central vision. To better understand GA progression in relation to the fovea, we performed a semi‐automated image analysis of regional atrophy growth in a long‐term GA natural‐history cohort. Methods Prospective‐observational, single‐centre‐study (02/2013–07/2025) at the
Daniel R. Muth   +8 more
wiley   +1 more source

Design, Fabrication and Testing of Diffractive Multifocal Intraocular Lens (MIOL)

open access: yes, 2018
The optical engineering exploration in making the capable of diffractive multifocal Intraocular lens (MIOL) will be be presented in the dissertation.
Xie, Jihong
core   +5 more sources

Spatio-chromatic vision with multifocal diffractive intraocular lens

open access: yesEye and Vision, 2023
Background This study aims to detect alterations in the spatio-chromatic pseudophakic vision produced by multifocal diffractive intraocular lenses (IOLs) and provides a physical interpretation. Methods In vitro characterization of the imaging performance
Maria S. Millan   +4 more
doaj   +1 more source

Biopsy of Iris and Anterior Chamber Tumours: Fine Needle, Minimally Invasive and Excision Techniques ‐ Review

open access: yesClinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Several benign, inflammatory and malignant lesions can present as iris or anterior chamber masses, including iris naevi, cysts, adenomas, leiomyomas, nodules, vascular tumours, melanomas, metastases, as well as iris and pigment epithelium adenocarcinomas. Fortunately, benign iris lesions are much more common than malignant tumours and many can
Charles N. J. McGhee   +3 more
wiley   +1 more source

Premium Intraocular Lens Selection in Patients With Glaucoma: A Clinical Review

open access: yesClinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Glaucoma frequently coexists with cataract, but glaucomatous functional loss, ocular‐surface disease, anatomical abnormalities, and treatment‐related refractive variability may reduce tolerance of premium intraocular lenses. This narrative review critically appraises evidence relevant to lens selection in glaucoma. Central visual‐field status,
Zhihao Liu   +3 more
wiley   +1 more source

Multifocal intraocular lens differentiation using defocus curves [PDF]

open access: yes, 2012
Purpose: To determine the most appropriate analysis technique for the differentiation of multifocal intraocular lens (MIOL) designs using defocus curve assessment of visual capability.Methods:Four groups of fifteen subjects were implanted bilaterally ...
Davies, Leon N.   +6 more
core   +1 more source

Comparison of Different Presbyopia Treatments: Refractive Lens Exchange with Multifocal Intraocular Lens Implantation Versus LASIK Monovision [PDF]

open access: yes, 2010
There are several methods for presbyopia treatment. Refractive lens exchange (RLE) followed by multifocal intraocular lens (MFIOL) implantation enables high rate of spectacle independance but have some visual disturbances.
Romac, Ivana   +11 more
core   +1 more source

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