If you’re short-sighted, close vision is clear but distance vision is blurred.
Short-sightedness often runs in families and usually appears in childhood.
Short-sightedness is easily diagnosed by a standard eye check by an optometrist or ophthalmologist (eye doctor).
Prescription glasses, contact lenses or refractive laser surgery can correct short-sightedness.
Short-sightedness is caused by your eyeball being too long or your cornea (the transparent layer that covers the front of your eye) being too curved. The focus point is in front of your retina, the light-sensitive part of your eye, rather than directly on your retina, causing blurred distance vision.
This topic sheet was provided by Healthline.