How to cure astigmatism and what are the causes?
Hello, my nephew is 24 years old. He has been diagnosed with astigmatism. His symptoms include blurred or distorted vision, eyestrain or discomfort. He was getting headaches. He has difficulty with night vision. Recently we have noticed that he was squinting. We have taken to him to an ophthalmologist and discovered that he has got astigmatism. Please let me know how to cure astigmatism and what are the causes.
@sahana Astigmatism occurs when either the front surface of the eye (cornea) or the lens inside the eye has mismatched curves. Instead of having one curve like a round ball, the surface is egg-shaped. This causes blurred vision at all distances. The eye has two structures with curved surfaces that bend (refract) light onto the retina, which makes the images: The cornea, the clear front surface of the eye along with the tear film. The lens, a clear structure inside the eye that changes shape to help the eye focus on near objects. In a perfectly shaped eye, each of these elements has a round curvature, like the surface of a smooth ball. A cornea or lens with such curvature bends (refracts) all incoming light equally to make a sharply focused image directly on the retina at the back of the eye. The goal of treating astigmatism is to improve vision clarity and eye comfort. Treatments are corrective lenses or refractive surgery.