Visual recognition disturbances are caused by lesions that affect visual cortex as well as white matter connections between visual cortex and temporal and parietal cortex. Homonymous visual field defects are often present but do not explain the recognition diIliculty. In “alexia without agraphia” (pure alexia), the intact right visual cortex is disconnected from the left parietal language cente...

Glaucoma as a chronic and often asymptomatic disease in its early stages has a great influence on Quality of Life (QOL). Mostly because of disturbances in visual functions like damage to the visual field, lower visual acuity, the psychological impact of the diagnosis, side effects and the cost of treatment. Evaluation of QOL is very useful instrument which helps to decide about the ways of trea...

the main objective of an ecosystem sustainable management is to preserve itscapacity to respond and adapt to current disturbances and/or future changes, and maintain theprovision of environmental goods and services. two very important properties linked to thisobjective are the ecosystem resilience and resistance to disturbance factors. the objective ofthis paper is to recommend conceptual modif...

background: chemicals are among risk factors that can affect women's reproductive system. this study is aimed to investigate the association of occupational exposure to a mixture of organic solvents with menstruation disturbances and hormonal changes among female workers. methods : female workers of a pharmaceutical company were divided into three groups of non-exposed, low-exposed and highly-e...

 Background: Multiple sclerosis (MS) is an inflammatory and demyelinating disease of central nervous system (CNS). The aim of the present study was to determine the type and the frequency of initial presenting symptoms in patients with MS and their relation with demographic characteristics in Babol, northern Iran. Methods: All patients of this study were recruited over a ten year period fr...

METHOD: Halo radius was measured using a vision monitor (MonCv3) with low-luminance optotypes in 39 eyes that had cataract surgery and the bilateral implant of an Acrysof Restor SN6AD1 multifocal IOL or Acrysof IQ monofocal IOL 6 to 9 months previously. The visual angle subtended by the disk halo radius was calculated in minutes of arc (arcmin). Patient complaints of halo disturbances were reco...

CASE REPORT We report a case of a 12-year-old patient who complained about visual disturbances in left eye for 6 months. His visual acuity was 1/0.9, funduscopy in left eye revealed a free-floating cyst in the anterior vitreous. Magnetic resonance showed a low intense image in T1, and B-scan ultrasound confirmed a hypoechogenic cyst of 3.2 × 4.3 mm; ultrasound biomicroscopy revealed a normal ci...

Spinal anaesthesia is associated with certain complications such as severe hypotension, post-spinal headache, meningitis, audiovisual disturbances and some time transient or permanent neurological damage. Now-a-days spinal anaesthesia is in demand again due to cost effectiveness, rapidity and predictability of effects and decreased rate of complications. A case of a young woman who received spi...

Static and dynamic contrast sensitivity (SCS and DCS), semantic object identification, and verbal recall functions were evaluated in 20 Alzheimer's disease (AD) patients and in 20 control subjects. We found general SCS and DCS loss in the 0.48-14.34 c deg-1 spatial frequency range. In relation to the cognitive functions, semantic object identification was intact, whereas explicit memory was mar...