Refractive errors are those problems in which the eye does not properly focus images on the retina.
In some patients with refractive errors such as nearsightedness, astigmatism and farsightedness, you can perform a surgical laser procedure in order to correct dichoscorregirse laser surgery, contact lenses or glasses.
Myopia is a condition where the eye is longer or stronger than normal and light rays focus in front of the retina, causing blurry vision.
Myopia may have its onset in childhood and progress as the child grows.
Astigmatism occurs when the eye is shaped more like a rugby ball than a soccer ball, causing light rays to focus at different points. This results in a blurred image.
In Farsightedness the eye is shorter or less powerful than normal and light rays focus behind it.
Presbyopia is the difficulty of reading after the fourth decade.