Asked by  | 6th Jun, 2008, 05:40: PM

Expert Answer:

Myopia also called  1.) near- or short-sightedness,3.)  is a refractive defect of the eye in which collimated light produces image focus in front of the retina when accommodation is relaxed.

4.) .) Those with myopia see nearby objects clearly but distant objects appear blurred. 5.) With myopia, the eyeball is too long, or the cornea is too steep, so 6.) images are focused in the vitreous inside the eye rather than on the retina at the back of the eye

Hyperopia, also known as 1.)  hypermetropia or colloquially as farsightedness or longsightedness, is a 2.) defect of vision caused by an imperfection in the eye (often when the eyeball is too short or when the lens cannot become round enough), 3.) causing inability to focus on near objects, and in extreme cases causing a sufferer to be unable to focus on objects at any distance. As an object moves toward the eye, the eye must increase its power to keep the image in focus on the retina. 4.) If the power of the cornea and lens is insufficient, as in hyperopia, the image will appear blurred.

Hyperopia, and restoring of vision with convex lens

People with hyperopia can experience blurred vision,

Answered by  | 6th Jun, 2008, 06:37: PM

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