Question
Name an old age eye defect. What happens in it?
✓
Answer
Presbyopia is an age-old eye defect. In this condition, the lens loses flexibility resulting in far-sightedness.
Cataract is also very common in old people, the cornea becomes opaque and the vision is cut down even to blindness.
Cataract is also very common in old people, the cornea becomes opaque and the vision is cut down even to blindness.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What is the law of limiting factors?
Give Reasons for the following.
A closed can of dried seeds bursts open if some water enters it by accident.
A closed can of dried seeds bursts open if some water enters it by accident.
Differentiate between: Antiseptic and Disinfectants.
Distinguish between the following pair of words:
Grey matter and white matter
Grey matter and white matter
Give Reasons
The acrosome of sperm secretes an enzyme called hyaluronidase at the time of fertilization
The acrosome of sperm secretes an enzyme called hyaluronidase at the time of fertilization
Explain the following term :
Conditioned reflex
Conditioned reflex
Differentiate between the following pairs of term :
Excretion and katabolism
Excretion and katabolism
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Given alongside are two figures (A and B) showing a phenomenon that was first observed in Manchester before and after the year 1850.
The following phenomenon provides a classical explanation of a scientific theory given by a certain scientist.
(i) Name and explain the said theory.
(ii) Give the name of the scientist who gave this theory.
The following phenomenon provides a classical explanation of a scientific theory given by a certain scientist.
(i) Name and explain the said theory.
(ii) Give the name of the scientist who gave this theory.
Draw a neat diagram of the stomatal apparatus found in the epidermis of leaves and label the Stoma, Guard cells, Chloroplast, Epidermal Cells, cell wall and Nucleus.