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What are the reasons of defect for myopia and hypermetropia ? |
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Answer» It helped me ! Thank you all guys . By the way its a very good way for studies with fun with such unknown freinds ! ? Hypermetrapia is that defct of vision due to which a person can\'t see the nearby object CAUSES...*conversing power become to close to eye*focus comes close to eye *far point closer to eye*ciliary muscles expand *eyeball smallerCORRECTNESScanvexlens power= -3D Myopia is that defect of vision due to which a person can\'t see the distant object clearly... CAUSES...*conversing power of eye went to infinity *focus went to infinity *far point infinity*ciliary muscles shrink*eye ball elongation/largercorrectness =concave lens power =-2d For myopia increase in length of eye ball or decrease in focal length of the eye lens when the eye is fully relaxed.For hypermetropia decrease in length of the eye ball or increase in length of eye lens as if the eye is fully relaxed 1. Eye ball being too short......2. Focal length being too short..... |
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