Results 371 to 380 of about 664,556 (407)
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Examination of the Retina

New England Journal of Medicine, 2015
Indications The retinal examination is part of a complete physical examination. It is particularly important in patients with a history of such systemic diseases as diabetes, hypertension, and atherosclerosis. Patients with the human immunodeficiency virus (HIV) or the acquired immunodeficiency syndrome (AIDS) are also at increased risk for retinal ...
Frances Wu, Yizhi Liu, Kang Zhang
openaire   +4 more sources

Optical coherence tomography of the human retina.

A M A Archives of Ophthalmology, 1995
OBJECTIVE To demonstrate optical coherence tomography for high-resolution, noninvasive imaging of the human retina. Optical coherence tomography is a new imaging technique analogous to ultrasound B scan that can provide cross-sectional images of the ...
M. Hee   +7 more
semanticscholar   +1 more source

DISEASES OF THE RETINA

Archives of Ophthalmology, 1951
During the past 10 years ophthalmologists have altered the point of view of physicians toward minor disorders of gestation by demonstrating that rubella and Toxoplasma may produce severe structural defects in the fetus. Further studies on children who were affected by maternal rubella infections during the first trimester of pregnancy (in the ...
openaire   +6 more sources

Zinc in the retina

Progress in Neurobiology, 2001
Experimental evidence exists to suggest that zinc can have positive and negative effects on the physiology of cells depending on the "local" concentration, localisation (extracellular vs. intracellular) and/or state (bound vs. free). The retina contains particularly high amounts of zinc suggesting a pivotal role in the tissue.
Ugarte, Marta, Osborne, Neville N.
openaire   +3 more sources

METABOLISM OF THE RETINA [PDF]

open access: possibleArchives of Ophthalmology, 1946
DURING the past few years the interest in retinal metabolism has been greatly intensified. Many investigations were made on the retina as part of a war emergency program. Because of this practical interest in a narrow but important subdivision of ophthalmology, this survey of the literature was made.
Arlington C. Krause, John A. Sibley
openaire   +2 more sources

Acetylcholine in the retina

Neurochemistry International, 1980
Acetylcholine in the retina is synthesized and released by a sparse group of amacrine cells that symmetrically line both margins of the inner plexiform layer. The action of these neurons is at once very selective (they affect ganglion cells of some functional classes, but not others) and rather diffuse (the dependence of the acetylcholine-sensitive ...
openaire   +3 more sources

Proteoglycans in retina

Progress in Retinal and Eye Research, 2002
In this article, we summarize the roles of proteoglycans in retinal tissue. Chondroitin sulfate and heparan sulfate proteoglycans are the major constituents in proteoglycans expressed in retinal tissue. Soluble heparan sulfate proteoglycans are found in the extracellular matrices of the basement membrane, such as the inner limiting membrane and Bruch's
Hidenobu Tanihara, Masaru Inatani
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Glaucoma and retina

Acta Ophthalmologica, 2009
Abstract Purpose Retinal and vitreoretinal surgeries frequently lead to an elevation of intraocular pressure (IOP) and/or glaucoma. Clinical presentations correspond to secondary glaucomas with an open‐angle or with angle‐closure. Results Since myopia is a risk factor for retinal detachment and glaucoma as well, it is not surprising that these two ...
openaire   +4 more sources

Ubiquinone in the retina

Vision Research, 1968
Abstract Microspectrophotometric examination of retinal cells shows an absorbance maximum at 282 nm and a shoulder at 275 nm, the latter possibly due to ubiquinone. Extraction of bovine retinal cell outer segments and retinal cells free of outer segments, however, failed to reveal any ubiquinone; an upper limit of 0.6 n mole ubiquinone per eye being ...
G. Entine, Paul A. Liebman, B.T. Storey
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The Retina and Hypertension

Postgraduate Medicine, 1969
Examination of the eye in hypertension can give information almost impossible to obtain by other means, such as how long the blood pressure has been elevated. Retinal arteriolar sclerosis reflects the wear and tear of the hypertensive process and should be graded separately from the ophthalmoscopic changes of hypertension. Grading systems are proposed.
openaire   +3 more sources

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