Farsightedness, or hyperopia, occurs when an eyeball is too short for the focusing power of the lens and cornea. This causes light rays to focus behind the retina. As a result, the eye sees distant objects more clearly while near objects appear blurred. It is a condition in which your eye is underpowered. Correction requires a "plus" lens containing additional optical power to permit sharp vision of near objects.

Here's how a spherical contact lens corrects hyperopia.

The shape of a hyperopic eye focuses images behind the retina, producing blurred vision of near objects.

By increasing the cornea's focusing power, a spherical contact lens corrects the refractive error, creating a single focal point on the retina where vision is sharpest.