نتایج جستجو برای: retina

تعداد نتایج: 51764  

Journal: :بینا 0
فرزانه قاسم زاده f gasemzadeh زاهدان- بیمارستان فوق تخصصی چشم پزشکی الزهرا (س) حسینعلی شهریاری h shahriari زاهدان- بیمارستان فوق تخصصی چشم پزشکی الزهرا (س)

purpose: to present 3 rare cases of benign flecked retina syndrome. patients and finding: a 19-year-old female patient presented with fundus albipunctatus appearance in fundoscopy without night blindness and normal dark adaptation time on electeroretinography (erg). after 9 years of follow up, no change in visual acuity, erg, or other ophthalmologic examinations was seen. two members of her fam...

The present investigation considered retina structure in embryos, larvae and adult Alburnus chalcoides. Histological samples of retina were provided from adult fish, different stages of embryonic and larval development. Eye primordia formed from ectoderm at 16 hours after fertilization (16hAF) and then developed to eye cups. Initial eye cup which contained undifferentiated retina began to form ...

Journal: :iranian journal of veterinary research 2012
m. saberi s. gholami

retina is a part of the central nervous system derived from the neuroectoderm and made up of 5 layers.in this study, the changes in the thickness of the retinal layers as a consequence of diabetes and effect of aloe vera gel extract in male rats were assessed. thirty sprague dawley adult male rats (175 ± 25 g) in two age groups (4 and 8 weeks) were divided into 6 groups of 5 as control, diabeti...

Journal: :caspian journal of environmental sciences 2014
al et h. khalili

the big eye kilka, clupeonella grimmi, is a marine fish living in depth of 20 to 200 meter of the caspian sea. its eye and retina were processed for histological and sem studies. paraffin embedded retina was cut radially and tangentially in 5 ?m thickness and stained with hematoxylin and eosin method. the unstained sections were manipulated for sem image observations. tangential retinal section...

M. Saberi S. Gholami,

Retina is a part of the central nervous system derived from the neuroectoderm and made up of 5 layers.In this study, the changes in the thickness of the retinal layers as a consequence of diabetes and effect of Aloe Vera gel extract in male rats were assessed. Thirty Sprague Dawley adult male rats (175 ± 25 g) in two age groups (4 and 8 weeks) were divided into 6 groups of 5 as control, diabeti...

Journal: :iranian journal of medical physics 0
reza pourreza phd student, computer engineering dept., ferdowsi university of mashhad, mashhad, iran. hamidreza pourreza associate professor, computer engineering dept., ferdowsi university of mashhad, mashhad, iran. touka banaee assistant professor, ophthalmic research center, khatam-al-anbia hospital, mashhad university of medical sciences, mashhad, iran. ramin daneshvar assistant professor, ophthalmic research center, khatam-al-anbia hospital, mashhad university of medical sciences, mashhad, iran.

introduction: this paper addresses a method for automatic detection of blood vessels in color fundus images which utilizes two main tools: image partitioning and local radon transform. material and methods: the input images are firstly divided into overlapping windows and then the radon transform is applied to each. the maximum of the radon transform in each window corresponds to the probable a...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران (پزشکی) - دانشکده پزشکی 1387

چکیده ندارد.

Journal: :بینا 0
مسعود سهیلیان m soheilian ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranتهران- پاسداران- بوستان نهم- خیابان پایدارفرد (خیابان امیر ابراهیمی)- پلاک 23- مرکز تحقیقات چشم نارسیس دفتریان n daftarian ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranتهران- پاسداران- بوستان نهم- خیابان پایدارفرد (خیابان امیر ابراهیمی)- پلاک 23- مرکز تحقیقات چشم

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...

Journal: :iranian biomedical journal 0
الناز خرداد elnaz khordad علیرضا فاضل alireza fazel علیرضا ابراهیم زاده بیدسکان alireza ebrahimzadeh bideskan

introduction: lead toxicity induces retinal cell apoptosis. vitamin c and garlic may decrease lead-induced apoptosis. this study was undertaken to investigate vitamin c and garlic protective effects on lead-induced apoptosis in eye retina. methods: pregnant wistar rats (n = 72) were divided randomly into 9 groups: (l) treated rats with lead acetate in drinking water and (l+aa) with leaded water...

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