Video - What Causes Astigmatism?
Click the video above to learn what is the cause of Astigmatism. It is most commonly caused when the shape of front surface of your eye (called the cornea) is not perfectly round (like a baseball) but, it is more oblong shaped (like a football). When this oblong shape is located on the cornea then it is called “Corneal Astigmatism”. Less often, the lens inside your eye (located right behind the colored part of your eye called the iris) can also be oblong shaped. This is called “Lenticular Astigmatism”.
Most commonly, people are born with this oblong shape to their eyes and often it can become a bit worse as time goes on. More rarely – astigmatism can be induced by a trauma to the eye.
Astigmatism causes a blur and distortion to your vision – for both distance and near objects. The higher the amount of astigmatism – the worse the blur and distortion will be. Astigmatism can be corrected with a variety of options – glasses, contact lenses (called toric or astigmatic contacts) and laser vision surgery.
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