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Name the defect of vision in which the e...

Name the defect of vision in which the eye-lens loses its power of accommodation due to old age.

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The correct Answer is:
Presbyopia
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LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Exercise
  1. What kind of lens is used to correct (a) short-sightedness (b) long-s...

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  2. State whether the following statement is true or false : Short-sight...

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  3. Name the defect of vision in which the eye-lens loses its power of acc...

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  4. Name the defect of vision which makes the eye-lens cloudly resulting i...

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  5. What is the other name of old age hypermetropia ?

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  6. Name any two defects of vision which can be corrected by using spectac...

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  7. Name one defect of vision (or eye) which cannot be corrected by any ty...

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  8. What is the far point of a person suffering from hypermetropia (or sho...

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  9. Where is the near point of a person suffering from hypermetropia (or l...

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  10. A man can read the number of a distant bus clearly but he finds diffic...

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  11. A student sitting in the last row of the class-room is not able to rea...

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  12. Complete the following sentences : (a) A short-sighted person cannot...

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  13. What are the two most common defects of vision (or defects of eye) ? H...

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  14. Differentiate between myopia and hypermetropia. What type of spectacle...

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  15. Name the defect of vision which can ne corrected by a converging lens....

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  16. Name the defect of vision which can be corrected by a diverging lens. ...

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  17. Example with the help of labelled ray diagram, the defect of vision ca...

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  18. Explain with the help of labelled ray-diagram, the defect of vision ca...

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  19. A person suffering from the eye-defect myopia (short-sightedness) can ...

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  20. What is presbyopia ? Write two causes of this defect. Name the type of...

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