نتایج جستجو برای: iris surgery
تعداد نتایج: 352761 فیلتر نتایج به سال:
In this paper, a new iris localization method for mobile devices is presented. Our system uses both intensity and saturation threshold on the captured eye images to determine iris boundary and sclera area, respectively. Estimated iris boundary pixels which have been placed outside the sclera will be removed. The remaining pixels are mainly the boundary of iris inside the sclera. Then, circular ...
Introduction: The prevalence of Weill-Marchesani syndrome (WMS) is estimated to be 1:100.000 proportion the population. Knowledge clinical and therapy WMS expected improve ability diagnose this disease. In case report, we will present a in tertiary hospital because our findings are rare essential concerning symptomatic treatment visual rehabilitation. Case Presentation: A 7-year-old child prese...
Purpose: Description of a patient with a solitary cyst of the pupillary margin iris pigment epithelium (IPE). Methods: A 63-year-old man referred a suspected iris-ciliary body melanoma in his left eye. Based on both clinical examination and ultrasound biomicroscopy, melanoma was considered unlikely. Surgery was undertaken to correct recurrent deterioration of vision due to movement of the lesio...
Purpose: The aim of this study is to report the clinical features, imaging studies, surgical removal, and pathology of congenital iris flocculi in a patient who developed a lifethreatening dissecting aortic aneurysm after 55 years of follow-up. Methods: Documentation with iris photography was performed from age 18 to 55 years, at which time anterior segment optical coherence tomography (OCT) wa...
Intraoperative floppy iris syndrome (IFIS) was first described in 2005 (Chang & Campbell 2005; Parssinen 2005). The fullblown syndrome comprises a triad of: 1) billowing of the iris stroma in response to normal irrigation currents, 2) the floppy iris tends to prolapse through the phaco and the side port incisions, and 3) a progressive pupillary constriction during the surgical procedure. Althou...
Frequently, in literature and curent practice, accessory iris membrane (AIM) and persistant pupillary membrane (PPM) are confused. Both AIM and PPM are congenital iris anomalies in which fine or thick iris strands arrise form the collarette and obscure the pupil. AIM, which is also called iris duplication, closely resembles the normal iris tissue in color and thickness and presents a virtual se...
AIM The histopathological features of the iris in leprosy were studied by light microscopy. METHOD Formalin fixed and paraffin embedded iris tissue excised during cataract surgery from 20 leprosy patients were sectioned and studied with haematoxylin and eosin stain and modified Fite Faraco's stain for acid fast bacilli (AFB). RESULTS Chronic inflammatory reactions were seen in the iris of 1...
Purpose: This case report illustrates the difficult management of complications produced following the bilateral iris implant of the NewColorIris (NewColorIris, Kahn, and Medical Devices. Methods: We report the case of a 36-year-old man who was referred to our outpatient clinic because of bilateral glaucoma showing a poor response to medical treatment and anti-glaucoma surgery. The young man ha...
PURPOSE Diabetes mellitus aggravates carotid occlusive disease, that can manifest as ocular ischemic syndrome (OIS). Ocular manifestations and visual prognosis of OIS in diabetic patients were retrospectively analyzed. METHODS Twenty-three consecutive diabetic patients with OIS were divided into two groups according to the presence of iris neovascularization, and the clinical features were re...
A 60-year-old woman developed anterior segment ischemia 1 week after an uneventful pterygium excision in the left eye. Corrected visual acuity fell from 20/20 to 20/200. Ophthalmic examination found keratic precipitates on the corneal endothelium, ++ cells in the aqueous humor, and necrosis of the lower half of the iris with posterior synechiae resulting in a fixed and distorted pupil. On thera...
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