Astigmatism is a refractive eye error, but most people are not as familiar with it, as they are with nearsightedness and farsightedness. All three of these vision problems affect the way in which light focuses, as it passes through the eye. But what exactly is astigmatism, and how is it treated? Let’s take a closer look.
Astigmatism is a very common eye defect, which is caused by an irregular curvature of the cornea. The cornea is the clear, dome-like layer of the eye through which light passes. It also acts as a protective cover for the eye.
The cornea is normally round in shape, and this allows light to focus equally in all directions as it passes through the eye, thereby ensuring clear vision. However, for people with astigmatism the cornea is unevenly shaped, causing light to scatter when it enters the eye, and as a result, vision is distorted. They also have difficulty making out very small details.
Many of the people who suffer from astigmatism are actually born with the condition, but it usually goes unnoticed until the begin school, or start reading.
The method used to treat astigmatism will depend on its severity, and is also influenced by the presence of other refractive problems. Astigmatism may be treated with the use of corrective lenses, or with surgery (click here).
Corrective lenses known as toric lenses are used to treat severe cases of astigmatism. These lenses are fitted with a cylinder that helps to bend the light in the right direction, as it passes through the eye.
If you want to learn more about what is astigmatism, then contact the Center for Ophthalmology and Surgery in Lighthouse Pt, FL. You can send your schedule an eye exam with Dr. Michael Loeffler at http://www.oculaser.com/contact-us/, or call 954-786-5353.