Hyperopia
Light rays focus on behind the retina
What exactly is hyperopia?
Hyperopia (farsightedness) is a common refractive error of the eye that can appear at birth or in the early years of life. In hyperopia, light rays do not focus on the retina, as is normal (emmetropia), but behind it.
What are the symptoms of hyperopia?
The symptoms of hyperopia depend on age. A hyperopic individual may have difficulty seeing clearly both distant and near objects, especially if he/she has a high degree (diopters) of hyperopia. At normal levels, while distant objects are seen clearly, near objects appear blurred (out of focus).
What are the causes of hyperopia?
Hyperopia is caused by:
Reduced refractive power of the eye, where the cornea (the front layer) is less curved than normal – refractive hyperopia
Reduced anterior – posterior axis of the eye – axial hyperopia
A combination of the above
If significant hyperopic diopters are observed in a child, careful monitoring with an eye examination is necessary, as conditions such as strabismus, amblyopia (lazy eye), and anisometropia may develop. It is also worth noting that people with hyperopia often begin to experience presbyopia earlier.
What are the treatment options for hyperopia?
Hyperopia can be managed with one of the following methods:
Use of vision glasses
Application of contact lenses
Surgical procedure with insertion and implantation of an intraocular lens (IOL), in cases of very high hyperopia, where the use of excimer laser is not recommended
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