نتایج جستجو برای: visual signs

تعداد نتایج: 455920  

صالحیان نیک , الهام , تفاخری, زهرا, شریفی رضوی , آتنا, فدایی, سحر , فروغی پور , محسن, مقدم احمدی, امیر, پور رشیدی, احمد,

Background and purpose: Optic neuritis is one of the common causes of unilateral or bilateral visual loss. The most common cause of this disorder is demyelinating disease of the central nervous system (CNS) and most of the patients with optic neuritis will present other signs of multiple sclerosis (MS). The diagnosis depends on the clinical findings, however, magnetic resonance imaging (MRI) is...

Journal: :Journal of Clinical Medicine 2023

Multiple sclerosis (MS) is one of the most common inflammatory neurological diseases which leads to a highly heterogeneous set symptoms and signs due differential involvement motor, sensory, visual, autonomic systems [...]

2018
Erina Ghosh Larry Eshelman Lin Yang Eric Carlson Bill Lord

Vitals signs are measured at scheduled intervals by nurses in typical general wards. Vital signs may be measured more frequently if the patient condition deteriorates. In many units, the vital signs measurement frequency for some patients is different from the scheduled frequency due to various reasons such as staffing, patient acuity etc. In this article, we describe the actual measurement fre...

2003
Norbert H. Maerz Qiang Niu

This paper describes a prototype of a digital video image analysis system that measures the relative luminance of highway signs using nighttime video images taken by a camera mounted in a moving vehicle. The concept is that by using an inexpensive video camera and laptop computer mounted in a vehicle a measurement of the brightness and visibility of the sign can be made. The system uses real ti...

2017
Jonathan Huang Wojciech Jarosz

People with impaired vision have trouble with day-to-day activities such as navigation and reading. Reading text on signs may be particularly difficult for the visually impaired because signs are typically in dynamic environments. Indoors, signage may include office, classroom, restroom, and fire evacuation signs. Outdoors, they may include street signs, bus numbers, and store signs. Depending ...

Mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome is a rare congenital disorder of mitochondrial DNA, presenting a wide range of clinical symptoms comprising headaches, seizures, aphasia, hearing loss, visual defects, and hemiparesis. Herein we report a case of a previously asymptomatic 40-year-old male who presented with recurrent headache, seiz...

2010
Katia Andrade Dalila Samri Marie Sarazin Leonardo C de Souza Laurent Cohen Michel Thiebaut de Schotten Bruno Dubois Paolo Bartolomeo

BACKGROUND In posterior cortical atrophy (PCA), there is a progressive impairment of high-level visual functions and parietal damage, which might predict the occurrence of visual neglect. However, neglect may pass undetected if not assessed with specific tests, and might therefore be underestimated in PCA. In this prospective study, we aimed at establishing the side, the frequency and the sever...

Journal: :journal of current ophthalmology 0
ronald ling بیژن بیگی bijan beigi

purpose : visual loss associated with multiple traumas in the context of road traffic accident, especially when the maxillofacial and orbital areas are not directly injured, is an uncommon occurrence. the possibility of purtscher’s retinopathy, i.e. retinal manifestation of mechanical trauma elsewhere in the body, as the cause of visual disturbance in these situations can often be overlooked. p...

Journal: :IOP Conference Series: Earth and Environmental Science 2021

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