Results 261 to 270 of about 91,701 (297)

Hamartoma of the Retinal Pigment Epithelium

American Journal of Ophthalmology, 1976
A 9-year-old boy had a unilateral ocular lesion characterized by a broadly elevated mass at the level of the retinal pigment epithelium. The mass showed hyperpigmented borders, overlying retinal constracture, retinal vessel tortuosity, and vitreous condensations. Electrophysiologic testing revealed an abnormal electrooculogram.
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The Retinal Pigment Epithelium

Archives of Ophthalmology, 1967
The comparative histology of the retinal pigment epithelium (RPE) of the following species was studied by examining bleached flat preparations and cross sections of the cells: human, monkey, rat, rabbit, sheep, cow, dog, and chicken. The variations noted among the cells of the different species involved cell size, nuclear size, number of nuclei per ...
M O, Ts'o, E, Friedman
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Hypertrophy With Hyperpigmentation of the Retinal Pigment Epithelium

Archives of Ophthalmology, 1975
Fifty-two patients (one bilateral) exhibiting hypertrophy with hyperpigmentation of the retinal pigment epithelium (RPE) are described. Visual acuity was not affected, and the patients were asymptomatic. There was no correlation with systemic diseases, family history of eye disease, associated fundus lesions, anterior segment abnormalities, or ...
J J, Purcell, J A, Shields
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Lipofuscin of Human Retinal Pigment Epithelium

American Journal of Ophthalmology, 1980
Analysis of the fluorescent spectra of chloroform-methanol extracts of human retinal pigment epithelium confirmed the presence of lipofuscin pigments in the pigment epithelium of older individuals. Similar fractions in the pigment epithelium of young individuals were present in insufficient quantities for spectral analysis.
L, Feeney-Burns, E R, Berman, H, Rothman
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The Retinal Pigment Epithelium

2005
Abstract The retinal pigment epithelium (RPE) is a monolayer of cuboidal epithelial cells intercalated between the photoreceptors and the choriocapillaries. The human RPE incorporates some 3.5 million epithelial cells arranged in a regular hexagonal pattern.
Morten la Cour, Tongalp Tezel
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PATTERN DYSTROPHY OF THE RETINAL PIGMENT EPITHELIUM

Retina, 1990
The authors describe a family in which one member had pattern dystrophy of the retinal pigment epithelium. The proband also had neovascular membranes which resulted in decreased visual acuity. Two other family members had abnormal electro-oculographic findings, but a clinical normal-appearing fundus that could represent an early stage of the disease ...
T, Shiono, A, Ishikawa, S, Hara, M, Tamai   +3 more
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Genesis of the frog retinal pigment epithelium

Developmental Brain Research, 1996
To examine cell generation in the frog retinal pigment epithelium (RPE), representative developmental stages from tail-bud to adulthood received a single injection of [3H]thymidine. Animals were killed either 24 h or several weeks later; eyes were sectioned and processed by standard autoradiographic procedures and viewed by epi-polarised illumination ...
L D, Beazley, M, Tennant, T L, Tomlin, J M, Preuss, L A, Coleman, S A, Dunlop   +5 more
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The Retinal Pigment Epithelium

Archives of Ophthalmology, 1968
A quantitative analysis of the retinal pigment epithelium (RPE) was accomplished by examining ten eyes obtained postmortem from eight individuals between the ages of four months of gestation and 96 years. The RPE was found to consist of a dynamic population of cells which change in number and dimensions as a function of age and location in the eye. The
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The Retinal Pigment Epithelium

Archives of Ophthalmology, 1982
The Retinal Pigmented Epithelium edited by Zinn and Marmor is well organized, clearly written, and beautifully illustrated. This scholarly work contains 26 chapters written by distinguished scientists and clinicians. Many have devoted a substantial portion of their careers to the study of the retinal pigment epithelium (RPE).
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Pattern dystrophies of the retinal pigment epithelium

Acta Ophthalmologica Scandinavica, 1996
ABSTRACT Pattern dystrophies of the retinal pigment epithelium are infrequent fundus abnormalities arranged in various patterns of dots, lines and branches. The basic lesion appears to be yellow deposits of abnormal lipofuscin accumulated within degenerated retinal pigment epithelium cells.
S, Daniele, A, Carbonara, C, Daniele, G, Restagno, F, Orcidi   +4 more
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