Your Altered Eye Is Completely Reparable
There are a lot of eye conditions that affect pretty much every one of us. One of those conditions is known as Astigmatism and it is characterized by the incorrectly curved surface of the eye which can lead to blurred vision.
It is said that the Cornea normally has a curvature that would help light enter the eye and when the curve is placed the right way, then all of the light would enter the retina the normal way. However, when there is an uneven curve, all of the light doesn’t pass through which will result in an unclear or blurred image.
The condition is usually congenital but may also develop during other circumstances as well, such as getting an eye operation (as a side effect) or if one experiences an injury to the eye.
Astigmatism is part of the group of eye conditions known as Refractive Errors due to the nature of the curvature that happens on the cornea.
Other popular examples of refractive errors include Presbyopia, near-sightedness, and far-sightedness.
What is It?
The perfect cornea is one that has a perfectly round shape. This means that any light that passes through the cornea would focus on the retina with 100% accuracy.
However, if the person has astigmatism, then it has an odd curvature which will result in not all light passing through the retina. Think of a perfect cornea as a basketball and a cornea that suffers from astigmatism as a football.
Instead of focusing all of the light to the retina, a person with astigmatism will have some light focused at the back of the eye, which causes the blurry images.
Most people who have this condition will not normally know if they have this if left on their own. That is why an eye test would be needed to diagnose this condition.
Some tests that can be done to diagnose astigmatism are the Visual Acuity Test, Keratometer, Astigmatic Dial, and Corneal Topography.
People with Astigmatism may offer have blurred vision at all distances, instances where excessive squinting may be required, difficulty driving at night due to blurred vision, eye strain, and headaches.
What Are the Causes?
The main function of the Cornea is to transmit and focus the light towards the back of the eye, whilst also protecting the eye from any damage or infection.
A cornea with perfect curvature would allow the refracting and bending of light as it enters the eye. A person with Astigmatism would have an oddly-shaped Cornea which means that not all light will pass through as it should which will result in blurred vision.
To this day, doctors and ophthalmologists still do not know why people are born with this condition, but they have hypothesized that genetics may play a role here.
If a person suffers only from a mild form of Astigmatism, the doctors may not prescribe any treatment. However, for moderate and severe cases, they might give you some corrective lenses to help you see clearly.
Such lenses would compensate for the irregularly shaped cornea and you will see things much clearer as if you have a normally curved Cornea.
In other words, you will be given some glasses to help you see much clearer.
If you want to go in another direction, there are preclinical studies being done whereby stem cell therapy may be applicable in the near future. They believe that transplantation of stem cells into the cornea can repair and correct the astigmatized form the cornea has taken. We’ll leave that to the scientists for now, until it’s perfected of course.