Results 271 to 280 of about 283,262 (306)
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Acute Retinal Pigment Epitheliitis
American Journal of Ophthalmology, 1995We examined a patient with acute retinal pigment epitheliitis before the development of the characteristic pigmentary retinopathy.Three days after onset of blurred vision in her left eye, a 25-year-old woman had a visual acuity of L.E.: 20/40 -2. There were uniform outer retinal golden-colored vacuoles in the area of subsequent foveal pigmentary ...
J K, Luttrull, M E, Chittum
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Renaissance of the Retinal Pigment Epithelium
Archives of Ophthalmology, 1972THE APPLICATION of recent advances in laboratory methods to the study of individual intraocular structures has greatly enhanced our ability to evaluate their function in health and disease. Nowhere is this more apparent than in the investigation of the retinal pigment epithelium where the utilization of light and electron microscopy coupled with ...
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A method for quantifying pigment position in retinal pigment epithelium
Experimental Eye Research, 2020In wildtype mice, the pigment granules in the retinal pigment epithelium aggregate in the dark towards Bruch's membrane and disperse towards the photoreceptors in the light. We have developed a repeatable method amenable for quantifying pigment position in the RPE from wild type mice by estimating the population density of pigment granules, or pigment ...
Dora Evelyn, Ibarra +8 more
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Pigment Cell Research, 2002
To study the relationship among tyrosinase activity, melanin production, and the routing of retinal ganglion cell (RGC) axons at the optic chiasm, we analysed mice with varying doses of the tyrosinase gene. These include the dark‐eyed albino (Tyrc44H), a radiation‐induced hypomorphic allele of tyrosinase; and transgenic mice carrying 1 or 2 alleles of ...
Rachel, R. A. +2 more
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To study the relationship among tyrosinase activity, melanin production, and the routing of retinal ganglion cell (RGC) axons at the optic chiasm, we analysed mice with varying doses of the tyrosinase gene. These include the dark‐eyed albino (Tyrc44H), a radiation‐induced hypomorphic allele of tyrosinase; and transgenic mice carrying 1 or 2 alleles of ...
Rachel, R. A. +2 more
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Retinal involvement in pigment dispersion syndrome
International Ophthalmology, 1996Retinal involvement has been documented in a number of patients with pigment dispersion syndrome, which also appears to be associated with a higher than normal risk of retinal detachment. We studied 24 patients with this syndrome to determine the prevalence of lattice degeneration and other retinal disorders associated with a predisposition to ...
Scuderi, G +3 more
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Acute Retinal Pigment Epitheliitis
American Journal of Ophthalmology, 1997To report a patient with acute retinal pigment epitheliitis examined less than 24 hours after onset of symptoms.One day after the onset of blurred vision in her left eye, a 33-year-old woman had a best-corrected visual acuity of LE, 20/60 -2. The left eye had classic uniform golden-colored nodules in a honeycomb pattern in the foveal retinal pigment ...
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The Retinal Pigment Epithelium
Archives of Ophthalmology, 1967The 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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On the Nature of the Pigment in Retinal Pigment Epithelium
Science, 1957M, MIYAMOTO, T B, FITZPATRICK
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[Retinal and retinal pigment epithelium hamartoma].
Ceska a slovenska oftalmologie : casopis Ceske oftalmologicke spolecnosti a Slovenske oftalmologicke spolecnosti, 2003Authors present four patients with combined hamartoma of the retina and retinal pigment epithelium who were observed for a period of 10 years. The significance of this entity lies primarily in its resemblance to malignant condition of the retina and choroid and in the vizual reduction.
T, Streicher +3 more
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