نتایج جستجو برای: presenting visual acuity
تعداد نتایج: 487484 فیلتر نتایج به سال:
Cataract is a total or partial clouding of the lens of the eye. It can be congenital or acquired. Cataract associated with the aging process (senile) is the most common type. Common symptoms include visual impairment which varies based on the type and the density of lens opacity. Cataracts etiology is varied and treatment is based on surgery. In patients with morgagnian cataract cortex liquefie...
BACKGROUND Public health officials of the Tibet Autonomous Region (TAR) of China requested a survey of blindness, eye diseases, and eye care service utilisation to assist the development of a 10 year blindness prevention and treatment plan. The objective of the survey was to determine the prevalence of blindness and visual impairment, as well as cataract surgical coverage and surgical outcome i...
purpose: to evaluate the role of transvitreal optic neurotomy (ton) in the management of non-arteritic anterior ischemic optic neurotomy (naion). methods: sixteen eyes of 16 patients with recent onset naion (less than six weeks duration) were included in this single-masked randomized controlled trial. the patients were randomized to ton (8 eyes) versus observation alone (8 eyes). pre- and posto...
BACKGROUND Blindness and low vision are thought to be common in southern Sudan. However, the magnitude and geographical distribution are largely unknown. We aimed to estimate the prevalence of blindness and low vision, identify the main causes of blindness and low vision, and estimate targets for blindness prevention programs in Mankien payam (district), southern Sudan. METHODS AND FINDINGS A...
Background and Objective: The measure of motion playing a role in the growth of visual perception components and particularly visual perception depending on the motion components has not been known. The aim of this present study was to investigate the effect of visual and visual-motor training programs related to the motion of the components of visual perception in children with lazy eye. M...
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