Myopia

Myopia, or short sightedness, is caused when the eye is longer or stronger than normal. This causes light rays to be focused to a point in front of the retina, making distant objects appeared blurred whilst near objects are clearer. Placing a minus or concave lens in front of the eye pushes the focal point back onto the retina.

Eyes needing higher myopic correction are more at risk of developing serious conditions such as retinal detachment or glaucoma.