![]() ![]() In myopia with accommodation relaxed, light rays from an object at infinity are focused in front of retina and in hyperopia behind the retina while as in astigmatism the light rays do not focus at a single point because of variations in the curvature of the cornea or lens at different meridians. 1 Refractive error (RE) is classified into myopia, hyperopia and astigmatism. ![]() If the rays of light with accommodation of the eye at rest are not focused exactly on the retina the condition indicates an error of refraction, which is referred to as ametropia. An emmetropic eye will therefore make a clear image of the distant object without any internal adjustment of its optics. ![]() When the parallel rays of light coming from infinity are focused on the retina with the accommodation of the eye at rest it indicates the normal refractive status of the eye called as emmetropia. ![]()
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