نتایج جستجو برای: macular pigment
تعداد نتایج: 47106 فیلتر نتایج به سال:
BACKGROUND Diabetic macular oedema is the leading cause of vision deterioration in diabetic retinopathy. Extracellular fluid within the retina, which distorts the retinal architecture, was assumed to be strictly of retinal vasculature origin. However, there is some experimental evidence supporting clinical observations suggesting a possible role of the retinal pigment epithelium (RPE). An unusu...
Background: Lutein is a hydroxy-carotenoid constituting the macular pigment of the human retina. Increasing lutein intake from foods could increase the density of this pigment and decrease the risk of developing macular degeneration. Yellow carrots are a novel food source that could increase lutein consumption. Objective: We evaluated and compared lutein uptake and clearance in humans from gene...
We report a case of central serous chorioretinopathy after rhinoplasty for deviation of the nasal septum in a 23-year-old Caucasian man. The patient complained of deterioration of vision in the right eye 4 days after rhinoplasty. At presentation, visual acuity of the right eye was 6/9 with metamorphopsia. Fluorescein angiography revealed a focal retinal pigment epithelium leakage and optical co...
PURPOSE Blue-light photooxidative damage has been implicated in the etiology of age-related macular degeneration (AMD). The macular pigment xanthophylls lutein (L) and zeaxanthin (Z) and n-3 fatty acids may reduce this damage and lower the risk of AMD. This study investigated the effects of the lifelong absence of xanthophylls followed by L or Z supplementation, combined with the effects of n-3...
Several darkly pigmented tumors affecting the macular area have been described, including retinal pigment epithelial (RPE) hamartomas, combined retina-RPE hamartomas, melanocytic nevi of the RPE (congenital hypertrophy of the RPE), choroidal nevus, and melanomas invading the retina. Melanocytomas can rarely also be located in the macular area without involving the overlying retina. Retinal pigm...
Purpose. To report B-scan and "En-face" spectral-domain optical coherence tomography (SD-OCT) findings in acute retinal pigment epitheliitis (ARPE). Methods. Two patients (3 eyes) with ARPE were examined. Fluorescein and indocyanine green (ICGA) angiography, B-scan, and "En-face" SD-OCT were performed in each patient at initial and follow-up visits. Results. Both patients presented with acute o...
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