Results 21 to 30 of about 31,207 (305)
Assessment of tilt and decentration of crystalline lens and intraocular lens relative to the corneal topographic axis using anterior segment optical coherence tomography. [PDF]
PLoS ONE, 2017 To investigate the tilt and decentration of the crystalline lens and the intraocular lens (IOL) relative to the corneal topographic axis using anterior segment ocular coherence tomography (AS-OCT).A sample set of 100 eyes from 49 subjects (41 eyes with ...
Shuhei Kimura +7 more
doaj +1 more source
Chromatin remodeling enzyme Brg1 is required for mouse lens fiber cell terminal differentiation and its denucleation [PDF]
, 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
Intraocular light scatter as modeled through a stratified medium [PDF]
, 2001 Intraocular light scatter is modeled through a stratified medium. It is shown that the eye lens possesses properties of an interference filter. In conditions that may mimic opacification, as found with cataract formation, such a filter may have stop ...
Pierscionek, Barbara +2 more
core +1 more source
Dysfunctional lens syndrome: a prospective review
Revista 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
American 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
A test for crystalline lens biocompatibility [PDF]
Eye, 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
Subtle changes of the crystalline lens after cycloplegia: a retrospective study
BMC Ophthalmology, 2021 Background The purpose of this study was to evaluate the shape of the crystalline lens in terms of biometry and diopters before and after cycloplegia using the CASIA2 swept-source (SS) optical coherence tomography (OCT) system on the anterior segment ...
Cheng Dai +3 more
doaj +1 more source
Lens aging: Effects of crystallins [PDF]
Biochimica 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
Advances 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
Age-related changes of the human ciliary muscle. A quantitative morphometric study
, 1992 The age-related changes of the ciliary muscle of human eyes (33-87 years) were studied on histological meridional sections. Eighty-five melanoma eyes and 10 eyes of normal donors were investigated. The total area and the length of the muscle, the area of
Tamm, Svenja +2 more
core +1 more source