Results 21 to 30 of about 893,609 (302)

Stiffness gradient in the crystalline lens [PDF]

open access: yesGraefe's Archive for Clinical and Experimental Ophthalmology, 2007
While the overall stiffness of the lens has been measured in a number of studies, the knowledge about the stiffness distribution within the lens is still limited. The purpose of this study was to determine the stiffness gradient in the human crystalline lens.
Weeber, Henk A.   +3 more
openaire   +2 more sources

Intracapsular Lens Extraction for the Treatment of Pupillary Block Glaucoma Associated with Anterior Subluxation of the Crystalline Lens

open access: yesCase Reports in Ophthalmology, 2013
Purpose: To report a case of pupillary block glaucoma associated with spontaneous crystalline lens subluxation into the anterior chamber in a 34-year-old man.
Yong Joon Kim, Seung Joo Ha
doaj   +1 more source

Evaluation of anterior segment parameters in pars plana vitrectomy and silicone oil injection

open access: yesDelta Journal of Ophthalmology, 2020
Purpose The aim of this study was to compare the changes in anterior segment parameters induced by pars plana vitrectomy (PPV) and silicone oil injection in phakic and pseudophakic eyes.
Moataz H Osman   +2 more
doaj   +1 more source

Dysfunctional lens syndrome: a prospective review

open access: yesRevista Brasileira de Oftalmologia, 2021
The term dysfunctional lens syndrome has gained acceptance in the field and encompasses natural changes due to aging of crystalline lens. The evolution of diagnostic devices has been a key factor in better staging, understanding and characterizing of ...
Jorge Selem Haddad   +4 more
doaj   +1 more source

A test for crystalline lens biocompatibility [PDF]

open access: yesEye, 1991
The current use of monkeys for testing intraocular fluids and viscoelastic materials is being questioned because of the decreasing availability and increasing cost of these scarce animals. The rabbit is an inexpensive, readily available, and convenient animal which might provide an alternative model for this purpose.
L, Allarakhia   +2 more
openaire   +2 more sources

Chromatin remodeling enzyme Brg1 is required for mouse lens fiber cell terminal differentiation and its denucleation [PDF]

open access: yes, 2010
Background: Brahma-related gene 1 (Brg1, also known as Smarca4 and Snf2 beta) encodes an adenosine-5'-triphosphate (ATP)-dependent catalytical subunit of the (switch/sucrose nonfermentable) (SWI/SNF) chromatin remodeling complexes.
He, Shuying   +38 more
core   +1 more source

Haze Estimation of Crystalline Lens by Contrast Sensitivity as a Function of Scattering Light Intensity

open access: yesi-Perception, 2011
Cataract is one of the most typical age-related eye diseases. As the cataract progresses, the crystalline lens becomes hazier and the visual ability deteriorates.
Nozomi Ohnaka
doaj   +1 more source

The Crystalline Lens [PDF]

open access: yesAmerican Journal of Ophthalmology, 1918
With the reservations mentioned in the first paragraph of the Digest of the Literature this section brings the subject up to April, 1919.
openaire   +2 more sources

Lens aging: Effects of crystallins [PDF]

open access: yesBiochimica et Biophysica Acta (BBA) - General Subjects, 2009
The primary function of the eye lens is to focus light on the retina. The major proteins in the lens--alpha, beta, and gamma-crystallins--are constantly subjected to age-related changes such as oxidation, deamidation, truncation, glycation, and methylation. Such age-related modifications are cumulative and affect crystallin structure and function. With
K Krishna, Sharma, Puttur, Santhoshkumar
openaire   +2 more sources

Research progress of lens zonules

open access: yesAdvances in Ophthalmology Practice and Research, 2023
Background: The lens zonule, a circumferential system of fibres connecting the ciliary body to the lens, is responsible for centration of the lens.
Yingying Pan, Zhaoqiang Liu, Han Zhang
doaj   +1 more source

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