in this paper, a novel matched filter based on a new kernel function with cauchy distribution is introduced to improve the accuracy ofthe automatic retinal vessel detection compared with other available matched filter‑based methods, most notably, the methods builton gaussian distribution function. several experiments are conducted to pick the best values of the parameters for the new designedfi...

background endothelial injury is a well-known complication in chronic kidney disease (ckd) and hemodialysis. one of the sites in which early vascular changes may be detected is the retina. of course, these flow changes may not be detected in ophthalmologic exams, but it seems that color doppler sonography of retinal arteries may be helpful in these cases. objectives in previous studies on ckd p...

Vitreous hemorrhage is the most frequent finding in ocular trauma. In cases with obscured fundus visualization associated pathologies (retinal tear, choroidal detachment, intraocular foreign body, retinal etc.) should be evaluated by ultrasonography and vitreous motility monitored even if retina attached. A decrease points to development of proliferative vitreoretinopathy requires early vitrect...

aim: to report a patient with fundus flavimaculatus or macular dystrophy with flecks, who came to medical attention due to deteriorated vision in one eye and combined hamartoma of the retina and retinal pigment epithelium. case presentation: a 26 year old lady was referred with history of progressive decreased vision in both eyes since childhood with recently deteriorated vision in her right ey...

purpose: to present a case of bilateral idiopathic central serous chorioretinopthy (icsc) complicated by bullous serous retinal detachment (rd). case report: a 26-year old female suffered from acute loss of vision in the both eyes. best spectacle-corrected visual acuity was 1/10 ou. the examination of anterior segment was unremarkable and a mild vitreous reaction was noted. dilated fundus exami...

Diabetic Retinopathy (DR) is a progressive asymptomatic neuro-vascular complication of diabetes that triggers irreversible retinal damage [...]

Congenital vascular anomalies of the retina are rare, but they should be evaluated with a multidisciplinary approach because can associated systemic diseases and cause severe vision loss. This article aimed to review literature about retinal tortuosity, macrovessel, congenital folds, combined hamartoma.