Nearsightedness

If you’re nearsighted, you can see clear images of near objects but things far away are blurry. Unlike hyperopia, which is usually present from birth or a very young age, myopia can occur gradually and become worse over time. Most people notice their nearsightedness when trying to read objects at a distance, such as wall clocks or traffic signs, and having to squint to get a better view. Myopia is also caused by a refractor error, in which the cornea is curved too steeply, or the eye is longer than usual.