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Hypermetropia and Myopia , both are refractive defects in vision and are nearly opposite in nature. Below are the differences between the two .
| Myopia | Hypermetropia |
|---|---|
| Myopia is also known as near-sightedness . | Hypermetropia is also known as far-sightedness. |
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| In myopia , a person is not able to see distant objects clearly. | In hypermetropia , a person is not able to clearly see the nearby objects. |
| In this defect , lens are not able to produce sharp image of the distant objects on the retina instead the image is formed in front of the retina . | In this defect , image is formed behind the retina. |
| The reduction in the focal length of the eye lens may be a possible cause. | The increase in focal length of the eye lens may be a cause. |
| Another cause can be the elongation of eye ball. | It may also be caused due to flattening of the eyeball . |
| Myopia can be corrected by using concave lens of suitable focal length. | Hypermetropia may be corrected using convex lens of suitable focal length . |
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