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Understanding Astigmatism: Causes, Symptoms, and Treatments
Astigmatism is a common vision condition that affects how the eye focuses light, leading to blurred or distorted vision. It occurs when the cornea, the clear front surface of the eye, or the lens inside the eye has an irregular shape. Normally, the cornea and lens are smoothly curved, allowing light to focus precisely on the retina. In astigmatism, the uneven curvature prevents light from focusing correctly, resulting in a distorted image.
Causes of Astigmatism
Astigmatism can be present from birth, often developing naturally as the eye grows. In some cases, it can occur after an eye injury, surgery, or certain eye diseases. Genetics play a significant role, meaning children of parents with astigmatism are more likely to develop the condition. Additionally, changes in the cornea’s shape due to conditions such as keratoconus, where the cornea gradually thins and bulges outward, can also cause…