نتایج جستجو برای: vision impairment
تعداد نتایج: 258120 فیلتر نتایج به سال:
PURPOSE To validate the German-translated Impact of Vision Impairment (IVI) questionnaire, a vision-specific quality of life (QoL) scale, and determine the relationship between the severity of vision impairment, ocular conditions, and VRQoL. METHODS This cross-sectional study was clinic based, with 184 patients with low vision recruited from an outpatient clinic at a German eye hospital. Part...
BACKGROUND Global and regional prevalence estimates for blindness and vision impairment are important for the development of public health policies. We aimed to provide global estimates, trends, and projections of global blindness and vision impairment. METHODS We did a systematic review and meta-analysis of population-based datasets relevant to global vision impairment and blindness that wer...
AIMS To determine the prevalence and causes of visual impairment in Tehran, Iran, through a population based study. METHODS In a population based, cross sectional study, 6497 Tehran citizens were sampled from 160 clusters using a stratified, random, cluster sampling strategy. The eligible people were enumerated through a door to door household survey in the selected clusters and were invited....
Specific blue-yellow colour vision impairment has been reported in dependent cocaine users and it was postulated that drug-induced changes in retinal dopamine neurotransmission are responsible. However, it is unclear whether these changes are confined to chronic cocaine users, whether they are specific for dopaminergic stimulants such as cocaine and amphetamine and whether they are related to c...
Background: Social communication is a so important component for a healthy personality. All of the approaches and theories in psychology talked about the importance of social communications. Attachment is the most striking concept in contemporary psychology that Refers to the process of shaping emotional bonds. The interaction between the child and the mother shapes a special internal working m...
PURPOSE To validate the Impact of Vision Impairment for Children (the IVI_C), a new vision-specific pediatric instrument designed to assess the affect of impaired vision on quality of life (QoL) in children. METHODS The IVI_C was administered to vision-impaired and normally sighted students, 8 to 18 years of age. Reliability and validity were tested, and the IVI_C was subjected to Rasch analy...
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