The past rectification operation aiming at myopia refraction patients has developed the rectification treatment aiming at hyperopia and astigmia patients.
But a unique thing about hyperopia is that if these patients increase the power of their lens by contraction of certain intraocular muscles, they can focus the image accurately on their retina.
Someone who’s farsighted can see distant objects just fine, but when objects are too close, their eyes can’t make light rays converge at the retina, and instead the image forms beyond the retina.
Now if you know a little bit about lenses used in eyeglasses, you probably know that the lenses are cut in a specific way depending on whether you're nearsighted or farsighted.
Optometrists are experts in diagnosing conditions such as nearsightedness, farsightedness and astigmatism, and prescribe corrective lenses on the basis of vision tests.