A database related to the activities of the Liverpool vision assessment team was used to identify all children with vision impairment aged 0-16 years, resident in Liverpool, UK, on 1 April 1995. Prevalence rates were calculated for all children with vision impairment, and separately for two groups: those with uncomplicated vision impairment, and those with additional pathology. Visual tract pat...

purpose : to determine the prevalence of visual impairment, blindness, and low vision among the elderly population of sari in northern iran methods : random cluster sampling of 1,185 selected individuals over 54 years of age, of whom 79.1% participated. participants underwent eye examinations to test presenting visual acuity (va), best corrected visual acuity (bcva), and refraction. results : b...

the purpose of this review is to bring together to the physiology and psychology of vision and to analyze, based on our own data and on the available literature, the relationship between sight loss and individual reactions. as recent treatments for depression are often effective and have few side-effects, ophthalmologists should consider referral for treatment of depression in patients sufferin...

purpose: to describe causes of low vision and blindness in patients referred for low vision aids to rehabilitation clinics at shahid beheshti medical university during 2005. methods: visual acuity was classified to five groups based on best-corrected visual acuity (bcva) in the better eye according to world health organization (who) criteria and by using standard snellen chart which included mi...

This paper reviews the published literature that is concerned with color vision impairment from industrial and environmental exposure to neurotoxic substances, and we evaluated whether testing for color vision impairment could be an affordable procedure for assessing these neurotoxic effects. In general, most cases of congenital color vision impairment are red-green, and blue-yellow impairment ...

purpose: to determine the prevalence and causes of blindness and low vision in khoozestan province in 2006. methods: this population-based cross-sectional study included all residents of khoozestan province during 2006. the study was designed according to world health organization recommendations. sample size was calculated based on the distribution of the population of khoozestan according to ...

AIM To examine whether the relationship between vision impairment and health-related quality of life (HRQoL) in nursing-home residents is impacted by coexisting cognitive impairment. METHODS This cross-sectional study involved a total of 382 English-speaking older adults (>55 years of age) with > or =13 on the Mini Mental State Exam (MMSE) from seventeen nursing homes in Birmingham, Alabama. ...

In 2014, an estimated 2.8 million persons aged ≥65 years in the United States reported severe vision impairment* defined as being blind or having severe difficulty seeing, even with eyeglasses. Good vision is important for maintaining balance as well as for identifying low-contrast hazards, estimating distances, and discerning spatial relationships. Conversely, having poor vision increases the ...