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Hyperopia is the refractive abnormality in which luminous rays are focused behind the retina, when the eye is calm.

Hyperopia can exist due to a small sagittal axis of the eye, to a small refractive force of cornea or lens or to a combination of the later reasons. The symptoms of hyperopia depend on the age of the individual and the degree of the problem. Low degree hyperopia can be encountered at the birth, a common phenomenon that is decreased with aging.
During childhood, young individuals can neutralise hyperopia by activating the function of adaptation (cf. Presbyopia), in order to minimize or eliminate their sight problems. While people grow up, the breadth of adaptation decreases, and therefore the problems of decreased sight begin, for both near and distant sight.

Certain individuals with low degree of hyperopia, due to the continuous efforts to adapt and neutralise the effects of the problem, can present symptoms of kopiopia (headache, pain in eyes, lacrimation). Sometimes, for young children, hyperopia is accountable for a certain type of squint that should be looked upon immediately because due to possibility of developing amblyopia (aka lazy eye).

Hyperopia can be dealt with positive corrective lenses. Applying corrective glasses depends on the degree of hyperopia, the age of the individual and the presence or absence of problem symptoms. Contact lenses can also be used.