Yes, astigmatism can cause poor vision. Astigmatism is a refractive error of the eye that occurs when the cornea is not evenly curved, causing an irregularly shaped light beam that enters the eye. This causes blurry vision at all distances, as well as other vision problems like double vision, halos, and ghosting.
The degree of a person's astigmatism dictates the type and severity of their vision problems. Mild astigmatism may not cause any major vision problems, while moderate or severe astigmatism can lead to more significant vision loss. Common symptoms of astigmatism include headaches, eyestrain, and difficulty seeing well at night.
Fortunately, astigmatism is easily treatable with glasses, contact lenses, or laser eye surgery. For people with mild astigmatism, corrective lenses may be all that is needed to restore their vision. For more severe cases, laser eye surgery may be an option to permanently correct the cornea's shape and improve vision.
In conclusion, astigmatism can cause poor vision, but it is easily treatable with corrective lenses or laser surgery. With the right treatment, people with astigmatism can enjoy clear and comfortable vision.