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A cataract is the clouding of the lens. Crystallins are water-soluble structural proteins found in the lens of the eye; these are what are responsible for the transparency in the lens. These proteins are arranged in a precise way that keep the lens clear and let light pass through it. As we age, the proteins begin to clump together causing that part of the lens to cloud. Essentially it is the lens that is affected.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoBlindness can result from many different problems. It can arise from damaged ocular (eye) structures, incorrectly developed eye structures, or from neurological (brain) problems that involve areas typically associated with vision. This question needs to define what type of blindness to be able to specify what exactly is being affected.
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∙ 14y agotearduct
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What are the disadvantages of sunglasses?
It damages eye and causes night blindness
What is moon blindness in blue eyed horses?
Moon blindness can also occur in horses with brown eyes. It is a very painfull infection of the iris [coloured part of eye]. It is not fully understood what causes it.
What are causes of blindness?
There can be genetic contributions to blindness. Other causes can be eye trauma. Over or under exposure of the rods and cones in the eye, such as looking at the sun or being in a pitch black room for prolonged period of time. Certain drugs can cause blindness if taken in excess. Certain diseases such as glaucoma.
What are some of the causes of eye ailments?
sore eyes, irritated eyes sore eyes, irritated eyes
A failure of the red-sensitive nerves in the eye to respond to light properly causes?
color blindness
How do you use retina in a sentence?
Macular degeneration is a disease of the eye that causes blindness by destroying the retina.
A failure of the red-sensitive nerves in the eye to respond to respond to light properly causes?
Color blindness is the failure of the red sensitive nerves in the eye that don't respond to light properly.
What is the kind of blindness that Vitamin A deficiency causes?
The first sign of Vitamin A deficiency is night blindness. Severe Vitamin A deficiency can cause Xerophthalmia (dry eye in which the eyes cannot produce tears) and complete blindness.
What causes blindness in cattle?
Blindness is fairly uncommon in cattle, but it can occur for several reasons. Blind cattle may be seen circling, knocking into objects and have no menace response ( they won’t blink when a hand is waved in front of their eye).
Define the following?
One of the leading causes of blindness in the US, glaucoma results from a group of eye conditions which causes optic nerve damage due to abnormally high pressure inside the eye.
What is an eye blindness?
Eye blindness is the state of being sightless in one or both eyes.
Malnutrition causes what eye problems?
Visual disturbances include night blindness and increased sensitivity to light and glare.
