If you suffer from hyperopia, objects in the distance are usually sharp; however, in severe cases, even distant objects can be blurred. This condition, known as farsightedness, is a result of the eye not having enough optical power.
The cornea and the natural lens normally refract incoming light rays to intersect at a single focal point that lies exactly on the retina; the layer of light-sensitive cells lining the back of the eye. A hyperopic eye refracts light to a focal point that lies behind the retina. This causes vision problems, especially when trying to focus on objects at a close proximity. Blurriness occurs because the light is not focused on the retina, where the optic nerve transmits the image to the brain.
The prescription and refractive power of hyperopia is given in positive diopter. The higher the number, the more severe your refractive error is.
Hyperopia usually develops at birth or at a young age, but only causes visual problems in a small percentage of people until the age of 40. Then the number starts to increase. At a young age the flexibility of the natural lens can compensate for hyperopia by changing its shape and focusing the light rays exactly on the retina. This ability is known as accommodation.
Around the age of 40, the natural lens can become less flexible, which leads to the loss of its ability to compensate for the existing refractive error. Also, lower levels of hyperopia become more noticeable and reading glasses may be needed as it becomes harder to focus on close objects.
The condition is often inherited, but may occur as a result of various local or systemic diseases in rare cases.
If your degree of hyperopia is low, you might not notice your reduced vision. However, living without corrected hyperopia could negatively affect your quality of life.
Common symptoms of hyperopia include
It is important to regularly have your eyes examined by an expert. Hyperopia can be diagnosed in a basic eye exam by an ophthalmologist or an optometrist.
Hyperopia is a vision condition, not a harmful disease; the eye is still healthy, but requires visual aids.
Well over half the world’s population relies on glasses or contact lenses to see well. For many of these people, this may be the best option, and today, there are a variety of spectacle lens and contact lens options available for a wide range of vision needs.
However, many wearers have problems wearing glasses or contact lenses and find that their dependency on visual aids interferes with their daily lives.
Many people want to see – to see well without glasses or contact lenses. Laser eye surgery may provide an alternate solution to glasses and contact lenses. Consult with your eye doctor to determine the best option for your vision and daily life.