What is it?
What exactly is hyperopia?
In farsightedness (hyperopia) the near vision is mainly affected but also, to some extent, the distant vision as well. It is also a frequent refractive error, wherein the light beams from the external environment, and thus the images of the various objects are not focused in the back of our eye, i.e. onto the retina, as is normal emmetropic eyes but behind it, leading the eyes to tire easily or not seeing very clearly near or far.
What causes hyperopia? Main causes:
- reduced refractive power of the eye (refractive hyperopia)
- reduced sagittal axis of the eye (axial hyperopia)
Hyperopia usually occurs at birth. It may show a decrease in teen and post-adolescent age due to greater adaptability of the eye lens and begins to disturb again at the age of 30-35 years.
Note that presbyopia starts earlier in hyperopia.
Hyperopia may be treated with:
- vision spectacles
- contact lenses
- refractive surgery (surgery with excimer laser)
- surgery for replacing the crystalline, natural eye lens