Keratoconus is an eye disorder which is degenerative and often makes the usually round shaped cornea begin to thin and bulge. This can eventually start to take on a shape that is tending towards a conical one (cone like). The cornea is that part of the eye that covers the anterior chamber, iris as well as the pupil. It is the transparent part just at the front of the eye. When the cornea becomes shaped like a cone, it usually affects light entry to the eye as it heads to the retina which causes images to become distorted and poor quality.
There is plenty of research that has been carried out to try and ascertain what exactly causes Keratoconus but sadly, no conclusive results have emerged as yet. Medical experts contend that the condition might have its roots in several factors that work as a combination of risk factors leading to its development. Some of these risk factors include environmental factors, genetic factors as well as other factors.
It is also highlighted by experts that the condition comes about when the corneal tissue has been weakened due to an imbalance. This imbalance usually means that the cornea can very easily be negatively affected by ‘radicals’ which in the end make the cornea to change shape.
Some of the symptoms of Keratoconus include the emergence of a slightly blurred vision. This usually happens when the Keratoconus is still in its early stages. The symptoms of Keratoconus in its early stages are somewhat similar to those of other defects of the eye. However, with time, the situation worsens and the vision becomes more blurred.
Other signs and symptoms include a poor night vision as well as having great sensitivity to any form of bright light. Someone with Keratoconus usually squints just to read something and they tend to feel itchiness on the eye leading them to frequently rub the eye. This however does not come with any form of pain. One of the most common symptoms of Keratoconus is double vision where instead of one image there is a double second image. This can make it extremely difficult to drive at night since patients are unsure which headlights are the real ones and which are the double ones.
For more information about keratoconus, vsit Wikipedia.
For more information about keratoconus visit the American Keratoconus Association
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