The power of accommodation of the eye usually decreases with ageing. This condition is known as:

Correct option is D

The correct answer is (D) presbyopia.

Explanation:
Presbyopia is the condition where the power of accommodation of the eye decreases with aging, making it difficult to focus on close objects.

Other options explanations:

• Hypermetropia: Far-sightedness, difficulty in seeing close objects clearly.
• Myopia: Near-sightedness, difficulty in seeing distant objects clearly.
• Colour blindness: Inability to distinguish certain colors, not related to accommodation.

Information booster:

• Presbyopia:
  • Typically occurs after the age of 40.
  • Caused by the hardening of the lens and weakening of eye muscles.
  • Corrected by reading glasses or bifocals.