Moyamoya disease is a rare, progressive cerebrovascular disorder that is caused by blocked arteries at the base of the brain in an area that is called the basal ganglia. The disease is characterized by the narrowing and/or closing of the carotid artery. Insufficient blood supply causes reduced oxygen to the brain. The reduced oxygen causes ...
The retina (Thin layer of neural cells covering the back two-thirds of the eyeball.) contains two types of photoreceptors: Rods and cones. Approximately 125 million rod receptors, located mostly at the periphery of the retina, more sensitive to light than cones, but not able to differentiate among colors, and not able to perceive shades of ...
At the age of 12, during a routine eye exam at my school the Nurse noticed that something wasn’t quite right with my vision. At the advice of our family doctor I was taken to see an Ophthalmologist and at that time was diagnosed with Macular Degeneration and told I was legally blind. I just ...
In the United States, many children are born with a hearing or vision impairment. Of these children, approximately three to six percent of newborns suffer from both hearing and visual impairments which translates, in the United States, to approximately one in 25,000 births. For parents of a child suffering from both hearing and visual impairment, ...
Night blindness is not only inconvenient, but it can be dangerous – especially if you try to drive a car after dark. The official medical term for this condition is nyctalopia, a condition that makes it difficult to see at night and when the lights are dim. It also makes it hard to focus when ...
Leber’s congenital amaurosis (LCA) – A rare genetic eye disease (disorder): Characterized by severe visual deficiency, total or nearly total blindness, occurs at birth or within the first few years of life. Children with LCA account 10 – 18 percent of all cases of congenital blindness. When first examined retina may appear normal. Vitreo – ...
The cornea is an important part of the eye and integral to our vision. Like any other body part, it is susceptible to disease. Find out what diseases can affect the cornea and how to treat them. The cornea is the clear outer layer of the eye. It helps to protect the eye from dirt ...
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