Retinal Pigment Deposition Secondary to Iatrogenic Pigment Dispersion
نویسندگان
چکیده
منابع مشابه
Surgical Management of Iatrogenic Pigment Dispersion Glaucoma.
INTRODUCTION Iatrogenic pigment dispersion syndrome generally originates from a repetitive, mechanical trauma to the pigmented posterior epithelium of the iris. This trauma can arise after intraocular surgery, most commonly due to an abnormal contact between the intraocular lens (IOL) and the iris. Whether surgical removal of this primary insult can lead to a successful intraocular pressure (IO...
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Lipofuscin in the retinal pigment epithelium (RPE) is thought to be derived from phagocytosed photoreceptor outer segment disc membranes. Based on this hypothesis, one would predict that the rate of lipofuscin deposition in the RPE would be proportional to the density of photoreceptor cells in the retina. In previous studies it was demonstrated that specific loss of photoreceptor cells due to a...
متن کاملRetinal pigment epithelial dysfunction in patients with pigment dispersion syndrome: implications for the theory of pathogenesis.
OBJECTIVE To test the hypothesis that the retinal pigment epithelial/photoreceptor complex is affected in patients with pigment dispersion syndrome and/or in patients with pigmentary glaucoma. METHODS Electro-oculograms were recorded from patients with pigment dispersion syndrome, pigmentary glaucoma, ocular hypertension, and primary open-angle glaucoma and from control subjects. Electro-ocul...
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The 2 rare entities, pigmentary dispersion syndrome and pigmented pattern dystrophy of the retinal pigment epithelium, were found in a young male patient. Visual function was undisturbed.
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In the eyes of teleosts and amphibians, melanin pigment granules of the retinal pigment epithelium (RPE) migrate in response to changes in light conditions. In the light, pigment granules disperse into the cells' long apical projections, thereby shielding the rod photoreceptor outer segments and reducing their extent of bleach. In darkness, pigment granules aggregate towards the base of the RPE...
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ژورنال
عنوان ژورنال: Ophthalmology Retina
سال: 2019
ISSN: 2468-6530
DOI: 10.1016/j.oret.2018.12.005