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The theme of blindness has been explored by many different cultures throughout history, with blind characters appearing in stories from ancient Greek mythology and Judeo-Christian religious texts. In the modern era, blindness has featured in numerous works of literature and poetry by authors such as William Shakespeare , William Blake , and H ...
Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]
Color blindness, a color vision deficiency. Cortical blindness, a loss of vision caused by damage to the visual area in the brain. Flash blindness, a visual impairment following exposure to a light flash. Hysterical blindness (nowadays known as conversion disorder), the appearance of neurological symptoms without a neurological cause.
Macular degeneration is the third main cause of blindness worldwide, and is the main cause of blindness in industrialised countries. [12] Eye infection, inflammation, or injury. Sjögren's syndrome, a chronic autoimmune inflammatory disease that destroys moisture producing glands, including lacrimal gland and leads to dry eye and visual blur. [13]
To celebrate Iowa History Month, the Register has published weekly essays from leading state historians. This article originally appeared on Des Moines Register: Iowa History Month: How Iowa led ...
Solar retinopathy or "eclipse blindness" is untreatable and can catch you by surprise. Here's what to look for.
Diabetes, for example, is the leading cause of new cases of blindness in those aged 20–74, with ocular manifestations such as diabetic retinopathy and macular edema affecting up to 80% of those who have had the disease for 15 years or more.
‘It was as if my dad’s voice came out of a stranger’s face,’ says portrait artist studied by researchers