نتایج جستجو برای: foveal reflex

تعداد نتایج: 25921  

Journal: :Archivos de la Sociedad Espanola de Oftalmologia 2013
M García-Fernández J Castro Navarro C González Castaño A García Alonso M Fonollá Gil

OBJECTIVE To study the influence of anatomic preoperative characteristics (based on the parameter, foveal central thickness, measured by optical coherence tomography) and functional characteristics (based on the parameter, best corrected visual acuity, [BCVA]) on functional recovery after epiretinal membrane (ERM) surgery. METHODS A total of 88 eyes (of 86 patients), on whom a vitrectomy due ...

Journal: :JAMA ophthalmology 2013
Ken Watanabe Kazushige Tsunoda Yoshinobu Mizuno Kunihiko Akiyama Toru Noda

OBJECTIVE To determine the relationship between the morphology of the fovea and visual acuity in patients with an untreated idiopathic epiretinal membrane (ERM). METHODS We examined 52 eyes of 45 patients diagnosed with an ERM. The morphology of the foveal area was determined by spectral-domain optical coherence tomography. The relationships between the best-corrected visual acuity (BCVA) and...

Journal: :Investigative ophthalmology & visual science 2013
Kavitha Ratnam Joseph Carroll Travis C Porco Jacque L Duncan Austin Roorda

PURPOSE To study the relationship between cone spacing and density and clinical measures of visual function near the fovea. METHODS High-resolution images of the photoreceptor mosaic were obtained with adaptive optics scanning laser ophthalmoscopy from 26 patients with inherited retinal degenerations. Cone spacing measures were made close to or at the foveal center (mean [SD] eccentricity, 0....

Journal: :acta medica iranica 0
olyaei g akbari m esfandiarpoor f

the purpose of the this study was to investigate the effect of direct current on montoneuron reflex exitability. thirty six subjects (18 males, 18 females) 19.36 years of age ( x= 24.06, sd= 3.63) participated in this study. the reflex excitability of soleus motoneruons was assessed by measuring the amount of change in the peak to peak ampitude of the h-reflex before and after direct current wa...

Journal: :British Journal of Ophthalmology 1954

Journal: :Investigative ophthalmology & visual science 2011
Zoran Popovic Per Knutsson Jörgen Thaung Mette Owner-Petersen Johan Sjöstrand

PURPOSE To demonstrate noninvasive imaging of human foveal capillary networks with a high-resolution, wide-field, dual-conjugate adaptive optics (DCAO) imaging instrument. METHODS The foveal capillary networks of five healthy subjects with no previous history of ocular or neurologic disease or surgery were imaged with a novel high-resolution, wide-field DCAO instrument. The foveal avascular z...

Journal: :بینا 0
عباس باقری a bagheri ocular tissue engineering research center‚ shahid beheshti university of medical sciences ‚ tehran‚ iranمرکز تحقیقات مهندسی بافت چشم- دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران مریم آل طه m aletaha shahid beheshti university of medical sciencesمرکز تحقیقات چشم- دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران فاطمه رودنشین f roodneshin shahid beheshti university of medical sciencesدانشگاه علوم پزشکی شهید بهشتی- تهران- ایران بهاره خیری b kheiri shahid beheshti university of medical sciencesمرکز تحقیقات چشم- دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران

purpose: to evaluate the incidence of the oculo-cardiac reflex (ocr) and its associated risk factors during strabismus surgeries performed at a tertiary referral center between 1390 and 1392. methods: over a 2-year period, all strabismus surgery candidates were enrolled in the study after obtaining consent from the patients or their parents. vital signs were recorded before the initiation of th...

Journal: :Sid's Digest Of Technical Papers 2023

Foveal rendering – where peripheral image content is rendered with lower resolution than axial ‐ well known as a technique for reducing computation requirements wide angle displays. In this paper, we discuss various aspects of encoding utilized display privacy.

2014
Daniel D. Dilks

Purpose—When individuals with central vision loss due to macular degeneration (MD) view stimuli in the periphery, most of them activate the region of retinotopic cortex normally activated only by foveal stimuli – a process often referred to as ‘reorganization’. Why do some show this reorganization of visual processing whereas others do not? We reported previously that six individuals with compl...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید