Advertisements
Advertisements
प्रश्न
The defect of vision which cannot be corrected by using spectacles is:
(a) myopia
(b) presbyopia
(c) cataract
(d) hypermetropia
उत्तर
cataract
Cataract is the defect of vision that cannot be corrected by using spectacles. It requires surgical intervention.
APPEARS IN
संबंधित प्रश्न
What is the scientific name of
long-sightedness?
Name the defect of vision in which the eye-lens loses its power of accommodation due to old age.
Where is the near point of a person suffering from hypermetropia (or long-sightedness)?
A person having short-sight cannot see objects clearly beyond a distance of 1.5 m. What would be the nature and power of the corrective lens to restore proper vision?
What is meant by optical illusion? Give one example.
Select the odd one in the following series:
Endolymph, Tympanic membrane, Semi-circular canal, Blind spot.
Differentiate between:
Myopia and Hypermetropia.
Explain the Term: Presbyopia
Given alongside is a diagram depicting a defect of the human eye. Study the same and answer the questions that follow:
 |
- Name the defect shown in the diagram.
- Give two possible reasons for this defect.
- Name the parts labelled 1 to 4.
- Name the type of lens used to correct this eye defect.
- Draw a labelled diagram to show how the above mentioned defect is rectified using the lens named above.
