نتایج جستجو برای: peripapillary structures
تعداد نتایج: 456590 فیلتر نتایج به سال:
Purpose. To compare subfoveal choroidal, central retinal, and peripapillary nerve fiber layer (RNFL) thickness after panretinal photocoagulation (PRP) with red and green laser in diabetic patients. Study Design. Randomized clinical trial. Methods. A total of 50 patients with bilateral proliferative diabetic retinopathy and no diabetic macular edema underwent PRP. One eye was randomly assigned t...
Leber's hereditary optic neuropathy (LHON) is typically characterized by vascular alterations in the acute phase. The aim of this study was to evaluate choroidal changes occurring in asymptomatic, acute and chronic stages of LHON. We enrolled 49 patients with LHON, 19 with Dominant Optic Atrophy (DOA) and 22 healthy controls. Spectral Domain-Optical Coherence Tomography (SD-OCT) scans of macula...
(1) Background: Topical antiglaucoma medications may alter the microcirculation in optic nerve head. We aimed to evaluate changes retinal vessel density (VD) on optical coherence tomography angiography (OCTA) patients with newly diagnosed normal-tension glaucoma (NTG) treated a topical beta-blocker. (2) Methods: This study included 80 NTG not using systemic medication, who received carteolol tr...
Aims—To determine if normal tension glaucoma (NTG) patients diVer from age matched controls in blood flow to the peripapillary retina, as measured with confocal scanning laser Doppler flowmetry (cSLDF; “Heidelberg retinal flowmetry”). Methods—12 NTG patients and 12 age matched controls were compared using (a) 10 × 10 pixel boxes (the instrument default sample size), taken from the nasal and tem...
A 74-year-old male with a history of dysphagia for 3 years presented with acute food impaction. Endoscopy showed a tight distal stricture with course rings at the middle third of the esophagus. Biopsies taken from the middle third of the esophagus showed marked infiltration of the intraepithelial lymphocytes mainly in a peripapillary distribution. The immunostains showed presence of CD3 and CD5...
A 38-year-old man from the Ohio Valley area presented to the Ophthalmology Cinic at a west coast hospital (USA) because of sudden loss of the right inferior temporal visual field after severe right frontal headache of several hours' duration. During the following months, diffuse peripapillary atrophy and peripheral punched-out lesions developed. When he had been seen initially, the fundus of th...
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