Results 11 to 20 of about 24,715 (172)
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
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Case 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
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Computational simulation of aqueous humour dynamics in the presence of a posterior-chamber versus iris-fixed phakic intraocular lens. [PDF]
PLoS ONE, 2018 PURPOSE:To compare aqueous humour (AH) dynamics in the presence of a precrystalline (Implantable Collamer Lens®; ICL) or iris-fixed (Artiflex®) phakic intraocular lens (PIOL).
José Ignacio Fernández-Vigo +8 more
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Geometric Theory of Columnar Phases on Curved Substrates [PDF]
Phys. Rev. Lett. 99 (2007) 017801, 2007 We study thin self-assembled columns constrained to lie on a curved, rigid substrate. The curvature presents no local obstruction to equally spaced columns in contrast to curved crystals for which the crystalline bonds are frustrated. Instead, the vanishing compressional strain of the columns implies that their normals lie on geodesics which converge ...
arxiv +1 more source
Epitaxial Sc$_x$Al$_{1-x}$N on GaN is a High K Dielectric [PDF]
, 2021 Epitaxial Sc$_x$Al$_{1-x}$N thin films of ~100 nm thickness grown on metal polar GaN exhibit significantly enhanced relative dielectric permittivity ($\epsilon_r$) values relative to AlN. $\epsilon_r$ values of ~17 to 21 for Sc contents of 17 to 25% (x=0.17 to 0.25) measured electrically by capacitance-voltage (CV) measurements at 500 kHz frequency ...
arxiv +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
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A rare case of traumatic subretinal migration of crystalline lens, corroborated histologically
Indian Journal of Ophthalmology, 2017 Blunt trauma is the most common cause of posterior dislocation of the crystalline lens. We describe a rare case of subretinal migration of crystalline lens through the giant retinal tear following blunt ocular trauma.
Pritam Bawankar +8 more
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Delhi Journal of Ophthalmology, 2022 Microspherophakia usually presents with various systemic and ocular features, and is rarely as an isolated incident. In this manuscript, we have reported a rare occurrence of bilateral isolated microspherophakia with unilateral total anterior luxation of
Prasanna Venkatesh Ramesh +5 more
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Hard convex lens-shaped particles: Characterization of dense disordered packings [PDF]
Phys. Rev. E 100, 062902 (2019), 2019 Among the family of hard convex lens-shaped particles (lenses), the one with aspect ratio equal to 2/3 is `optimal' in the sense that the maximally random jammed (MRJ) packings of such lenses achieve the highest packing fraction $\phi_{\rm MRJ} \simeq 0.73$.
arxiv +1 more source
i-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
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