In essence, a cataract occurs when the clear lens of the eye turns cloudy. This doesn't imply a growth or a tumor, just the fact that the lens has turned foggy. Your vision will appear as though you're looking through a windshield that has been frosted over. The effect is painless but makes your vision constantly blurry. The clear lens is situated just behind the iris, which is the colored portion of the eye. It draws light to the retina in order to provide clear vision. Cataracts block the light, keeping it from reaching the retina. However, there are times when the cataract is small and won't cause much blur. As such, it may not have to be taken out. If the cataract is larger, though, it will need to be removed.
In essence, a cataract occurs when the clear lens of the eye turns cloudy. This doesn't imply a growth or a tumor, just the fact that the lens has turned foggy. Your vision will appear as though you're looking through a windshield that has been frosted over. The effect is painless but makes your vision constantly blurry. The clear lens is situated just behind the iris, which is the colored portion of the eye. It draws light to the retina in order to provide clear vision. Cataracts block the light, keeping it from reaching the retina. However, there are times when the cataract is small and won't cause much blur. As such, it may not have to be taken out. If the cataract is larger, though, it will need to be removed.