نتایج جستجو برای: lens opacity

تعداد نتایج: 57148  

Journal: :Investigative ophthalmology & visual science 1991
G Maraini P Pasquini R D Sperduto M Bonacini M P Carrieri R Corona P Graziosi M C Tomba S L Williams

Data collected from 3646 eyes in the Italian-American Natural History Study of Age-Related Cataract were used to investigate whether the reliability of the Lens Opacities Classification System II (LOCS II) by the severity of the opacity that is being graded or is influenced by the presence and severity of coexisting opacities. Reliability was assessed by comparing the slit-lamp gradings of two ...

Journal: :Investigative ophthalmology & visual science 2003
Matthias Oppitz Andreas Mack Ulrich Drews

PURPOSE In the embryonic lens, cells of the anterior epithelium proliferate, migrate through the equatorial zone, and elongate to form primary lens fibers at the posterior pole. During this stage of development, cholinesterase (ChE) activity has been described as in other embryonic tissues implicated in morphogenesis. The purpose of the study was to demonstrate in addition to ChE the presence o...

2010
Dae Woong Lee Joon Mo Kim Ki Ho Park Chul Young Choi Jung Gon Cho

PURPOSE To assess the effect of ocular media opacity on retinal nerve fiber layer (RNFL) thickness measurements by optical coherence tomography (OCT). METHODS In this prospective, non-randomized clinical study, ocular examinations and OCT measurements were performed on 77 cataract patients, 80 laser refractive surgery patients and 90 patients whose signal strength on OCT was different on two ...

2014

Description of Procedure or Service Optical coherence tomography (OCT) is a high resolution method of imaging the ocular structures. OCT for the anterior eye segment is being evaluated as a non-invasive diagnostic and screening tool for the detection of angle closure glaucoma, to assess corneal thickness and opacity, evaluate pre-surgical and postsurgical anterior chamber anatomy, calculate int...

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