Hypermetropia

Commonly known as longsightedness, hypermetropia is an error of refraction that initially causes difficulty in seeing near objects and then affects distance vision. Hypermetropia tends to run in families. Hypermetropia is caused by the eye being too short from front to back, which results in images not being clearly focused on the retina. The error is present from birth, but symptoms generally do not appear until later life because the focusing power of accommodation, which compensates for hypermetropia, declines with age. Glasses or contact lenses with convex lenses reinforce focusing power.