Hyperopia occurs when the eyeball is too short or the cornea is too flat. When light enters a hyperopic (short) eyeball, it is focused behind the retina instead of directly on the retina where light must be directed for normal vision. Because of this, the focusing apparatus of the eye must constantly work to compensate and focus images.

Symptoms and options
Symptoms of hyperopia include blurred vision, eyestrain or headaches (especially when reading or at the end of the day). They will increase over time. Doctors prescribe a "plus" or convex corrective lens, in the form of eyeglasses or contacts, for the disorder. Hyperopia can also be corrected by steepening the central cornea using a vision procedure such as laser surgery or NearVision^sm CK^® (Conductive Keratoplasty^®).