Astigmatism- The Genetic Disorder
What is Genetic Disorder?
There are many different types of genetic disorder which are all caused by abnormalities or mutations in a person's DNA. These abnormalities can range from a little change in the eye to an entire limb being deformed to a severe mental illness. These abnormalities can be a single gene mutated or a group of genes out of place, which can be inherited or totally new to the person's family. Whatever the disorder is, it is both unique in some way to the person and has a treatment, either discovered or waiting to be found.
What is Astigmatism?
Astigmatism is a genetic/inherited disorder that exists in the eye and can cause many issues in a person's vison. An astigmatism can be one of two forms, both abnormalities in the eye's shape. The two forms of astigmatism are:
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Corneal Astigmatism which is caused by the cornea of the eye being an irregular shape, making the light refract or bend.
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Lenticular Astigmatism is where the lens of the eye is an improper shape, which also makes the light bend.
Astigmatism is an extremely common disorder, which occurs in two-thirds of the population of near-sighted people and in over 80% of Americans. Most often astigmatism is something one is born with, when the eye doesn't form to be perfectly semetric in the womb. In some less common situations, a disease, like diabetes causes an astigmatism, by making the eye's lens or cornea change shape. Eyes are often not quite rounded and most mild cases, of irregular cornea or lens shapes, can be adjusted to, avoiding need for glasses or contacts, but in more severe conditions, astigmatism can require correction.
Humans have always been effected by this particular disorder. It causes near/long sightedness, headaches, lazy eye, blurred vison, excessive squinting, eye strain, and sensitivity to light. Most moderate cases have at least one or two symptoms.
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