Contact Lens Basics

Contact Lens For Farsightedness


The medical name for farsightedness is hyperopia. Farsightedness is generally a vision problem in which the near vision gets blurred while the distance vision remains normal. Farsightedness in young people makes them unable to see clearly at all distances, only causing headaches and eyestrains. While farsightedness in older people causes blurred vision at all distances. When the cornea or lens is not able to curve enough to bring light to a focus within the length of the eyeball then farsightedness occurs. This means that the cornea and lens should have the right amount of curvature to avoid farsightedness.

But in some cases, cornea and lens have same curvature but the eyeball is smaller therefore not providing enough distance to match focus distance of lens and the cornea. However, people with farsightedness often compensate by focusing harder with their eyes but overuse of focusing would result in headaches and eyestrains. This focusing condition is called accommodation and is usually common among the teens and younger people. But, accommodation is really difficult for the older people thus resulting in blurred vision if not corrected. Some of the symptoms of moderate farsightedness are:

A) Eyestrain when performing any close work
B) Headaches
C) Blurred vision
D) Poor concentration

Farsightedness is often confused with the condition presbyopia. Presbyopia is a normal loss of near vision as one ages due to hardening of crystalline lens whereas farsightedness attacks early in childhood and remains throughout the life. Presbyopia is experienced by everyone whereas not everyone experiences farsightedness.

Farsightedness can be detected by an eye exam performed by an optometrist or ophthalmologist. For correcting farsightedness, a convex or plus lens is prescribed which is usually thicker at the center and thinner on the edges. It can also be corrected with spectacles and refractive surgery. It is one of the most common vision problems engulfing about one-fourth of the population. Your glasses or contact lens numbers for farsightedness usually begins with +2.50. Also a family history of farsightedness is an added risk factor.