Risk Factors
A risk factor is something that increases your chance of getting a disease or condition.
The following factors increase your chances of developing astigmatism. If you have any of these risk factors, tell your doctor:
- Heredity—a family history of eye disease or disorders, such as keratoconus
- Eye surgery—certain types of eye surgery, such as cataract (lens of the eyes are cloudy) removal (less common with modern techniques)
- A history of corneal scarring or thinning
- A history of excessive nearsightedness (a visual defect where distant objects appear blurred) or farsightedness (a visual defect where distant objects are seen better than objects that are close)
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