نتایج جستجو برای: color vision
تعداد نتایج: 238234 فیلتر نتایج به سال:
acquired color deficiency in the tritan axis in parkinson’s disease has already been reported, manifesting itself as impaired performance in various visual tasks. however, its clinical significance has always been controversial. in this study we evaluated the performance of parkinson s disease patients in lanthony 15-desaturated clinical test and for the first time, compared it with the standar...
ABSTRACT To evaluate the Prevalence of color vision abnormalities in gilan . 500 men and 401 women were selected randomly and tested with Ishihara color blindness booklet. We found 36 men and only one woman with color vision abnormality. The most frequent type was RedGreen color blindness (4.8%). 7% of gilamian males have color vision defects. It can be found with a simple test.
purpose: to evaluate color vision in patients with type ii diabetes mellitus without diabetic retinopathy and compare the results with those of age- and sex- matched normal individuals. methods: this descriptive, comparative study was conducted on 100 diabetic patients without any sign of retinopathy and 100 age- and sex-matched normal subjects. color vision was evaluated using ishihara and far...
Abstract Background: Occupational exposure to styrene can lead to various psychological and somatic complaints including color vision disorder that can occur even in low concentrations. Color vision disease is an early clue for effect of styrene on human, which can be used as an appropriate screening method in workers exposed to styrene. Materials and Methods: Working in waxy foundry is a job...
Background and purpose: Color vision deficiency is an X-linked recessive inherited disease that affects men more than women. The aim of this study was to determine the prevalence of color vision deficiency among patients with amblyopia aged 10 to 30 years old. Materials and methods: A cross-sectional population-based study was performed in 2846 participants, aged 10 to 30 years in 2013-15 at...
Background and aims: Color vision is one of the most important capabilities of the visual system. color vision impairment in many jobs, lead to reduced productivity, increased reaction time and workers' decision-making in confronting with of hazardous situations and as a result, it can lead to occupational accidents. This study was carried out to investigate occupational exposure to BTEX solven...
Background: Color vision has an important role in daily activities and also learning special talents in different jobs, especially in the field of medicine. However, they are many people all over the world that has no insight into their color blindness and choose the study fields that are completely dependent on vision. Due to the importance of color vision in the field of medicine, we conducte...
background: adverse effect of sun rays mainly uv ray on the human eye documented and protection of eyes is necessary using different methods such as, sun glasses. sunglasses are designed in different colors. the aim of this study was evaluation of the effect of different colors of sunglasses on the visual acuity, contrast sensitivity, stereopsis and color vision. methods: 81 normal subjects wer...
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