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A refractive error means that the shape of your eye doesn't refract the light properly, so that the image you see is blurred. There are different types of refractive errors: short-sightedness, long-sightedness and astigmatism.
How the eye works
The eye transforms light beams into electric impulses. The brain translates these impulses so we can see. In order to get...
» Read MoreNear-sightedness
With near-sightedness you see near by objects clearly, but distant objects are blurred. This is caused by the fact that...
» Read MoreFar-sightedness
People who are far-sighted can see distant objects clearly but near by objects are blurred. The rays of light converge...
» Read MoreAstigmatism
Astigmatism occurs when the cornea doesn’t bend the light beams the same way in all directions. The cornea does not have...
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