Distinguish between: a. Farsightedness and Nearsightedness
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1 Answer
| Farsightedness (hypermetropia) | Nearsightedness (Myopia) |
| In hypermetropia, person clearly sees all the far away objects, but is unable to see the nearby objects comfortably and clearly. | In Myopia, person clearly sees all the nearby objects, but is unable to see the distant objects comfortably and clearly. |
| It is caused due to decrease in curvature of eye lens or decrease in length of eyeball. | It is caused due to increase in curvature of eye lens or increase in length of eyeball. |
| In this defect, image is formed behind the retina. | In this defect, image is formed in front of the retina. |
| It is corrected using convex lens. | It is corrected using concave lens. |