Astigmatism is a common condition that causes blurred vision. It occurs when the cornea is irregularly shaped or sometimes because of the curvature of the lens inside the eye. It leads to blurred vision at any distance. This can lead to eye discomfort and headaches.
HOW IS ASTIGMATISM DIAGNOSED?
An ophthalmologist can diagnose this condition by using different tests such as: 1. An eye chart to reveal reduced visual activity 2. Keratometer to measure the curvature 3.Corneal topography
HOW IS ASTIGMATISM TREATED?
Almost all degrees of general astigmatism can be corrected with properly prescribed eyeglasses or contact lenses. For a person with only a slight degree of astigmatism, corrective lenses may not be needed at all, as long as other conditions, such as nearsightedness or farsightedness, are not present. If the astigmatism is moderate to high, however, corrective glasses or contact lenses are probably needed.
DID YOU KNOW?
Sometimes astigmatism may develop following an eye injury or eye surgery. It also occurs due to a relatively rare condition called keratoconus in which the cornea becomes thinner and cone-shaped. This results in large amount of astigmatism, which causes poor vision that cannot be clearly corrected with eyeglasses. People with keratoconus usually need contact lenses for clear vision and eventually may need a corneal transplant.