Results 291 to 300 of about 107,423 (339)
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Mass Spectrometry of Lens Crystallins: Bovine β-Crystallins
Rapid Communications in Mass Spectrometry, 1996The bovine beta-crystallins have been isolated by gel permeation chromatography (GPC) and fast protein liquid chromatography (FPLC). Electrospray ionization mass spectrometric examination of the resulting fractions confirms the relative molecular masses of three bovine beta-crystallins, i.e. beta B1, beta B2 and beta A2, only one of which (beta B2) has
G W, Kilby +3 more
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Crystalline lens alterations in congenital aniridia
Archivos de la Sociedad Española de Oftalmología (English Edition), 2021Congenital aniridia is a rare genetic disease associated with mutations in the PAX6 gene. Changes in the lens in aniridia can be alterations of size and shape, of position - which generally reveal zonular weakness and determines subluxation of the lens - and mainly changes in transparency, cataracts, with variable morphology of polar, cortical ...
F, D'Oria, R, Barraquer, J L, Alio
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A Model for Crystalline Lens Accommodation
Comprehensive Therapy, 2003When a slight equatorial pull is applied to the crystalline lens, the center thickens, the central surfaces steepen, and the optical power increases. These findings are consistent with Schachar's theory of accommodation.
Chang-Hai M, Chien +2 more
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Abscess of the Crystalline Lens
American Journal of Ophthalmology, 1943Perforating injuries of the globe frequently involve the lens by causing perforation of the anterior capsule and the production of varying stages of traumatic cataract. If infection accompanies the perforation, a purulent infiltration results in abscess of the lens.
R O, Rychener, E C, Ellett
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Ophthalmic and Visual Optics, 1991
Visual performance is influenced in many ways by the crystalline lens, too many to do justice to here. This paper will be restricted to a discussion of how the crystalline lens influences the optical quality of the image on the retina.
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Visual performance is influenced in many ways by the crystalline lens, too many to do justice to here. This paper will be restricted to a discussion of how the crystalline lens influences the optical quality of the image on the retina.
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Crystalline lens and refractive development
Progress in Retinal and Eye Research, 2015Individual refractive errors usually change along lifespan. Most children are hyperopic in early life. This hyperopia is usually lost during growth years, leading to emmetropia in adults, but myopia also develops in children during school years or during early adult life. Those subjects who remain emmetropic are prone to have hyperopic shifts in middle
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JAMA: The Journal of the American Medical Association, 1928
AN APPEAL TO THE GENERAL PROFESSION FOR CLOSER COOPERATION IN THE WORK OF THE OPHTHALMOLOGIST For many years I have been impressed with the conviction that ophthalmology was too remotely separated from the activities of the general profession, and that there is a need to stimulate, even though in a slight degree, a spirit of mutual interest and ...
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AN APPEAL TO THE GENERAL PROFESSION FOR CLOSER COOPERATION IN THE WORK OF THE OPHTHALMOLOGIST For many years I have been impressed with the conviction that ophthalmology was too remotely separated from the activities of the general profession, and that there is a need to stimulate, even though in a slight degree, a spirit of mutual interest and ...
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DISCISSION OF CRYSTALLINE LENS
Journal of the American Medical Association, 1916The accounts of this operation found in the larger textbooks of ophthalmology are generally unsatisfactory, that of Fuchs being least so. Better descriptions, both as to indications for the operation and technic, are found in special works dealing with ophthalmic operations, especially in Beard's "Ophthalmic Surgery"; and the best description is given ...
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In-Office Lens Repositioning for Anterior Crystalline Lens Dislocation
Ophthalmic Surgery, Lasers and Imaging RetinaBackground and Objective: We describe an in-office lens repositioning technique for anterior crystalline lens dislocation. Patients and Methods: We present a case series of four patients with spontaneous or traumatic anterior crystalline lens dislocation.
Prasida, Unni +6 more
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