Astigmatism is a refractive error of the eye, in which the light entering the eye is not accurately focused onto the retina. It is one of the most common vision conditions, and can be a significant problem for those affected by it.
Astigmatism can cause blurred vision, difficulty in seeing objects clearly, headaches, eyestrain, and squinting. It can also lead to difficulty in focusing on near and far objects. In some cases, astigmatism can also lead to double vision.
The main cause of astigmatism is an uneven curvature of the cornea or lens of the eye. This can be due to genetics, or can be caused by an injury or eye trauma. It can also develop over time due to progressive changes in the eye.
Astigmatism can be treated with corrective lenses or contact lenses. In more severe cases, surgery may be necessary to correct the problem. Laser-assisted in situ keratomileusis (LASIK) is one of the most common surgical procedures used to treat astigmatism, and is a relatively safe and effective option.
Overall, astigmatism can be a significant problem for those affected by it. It can cause blurred vision, difficulty in seeing objects clearly, headaches, eyestrain, and squinting. Fortunately, there are a variety of treatments available for astigmatism, ranging from corrective lenses to surgery, which can help improve vision and reduce the symptoms associated with the condition.