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SSC CPO 2024 PYQ — Question 85

SSC CPO - 29 June 2024 - Shift 3 • General Awareness • Q85

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Identify the structure that controls the size of the pupil.

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Correct answer: B

Explanation

The correct answer is option 2 i.e. Iris.

 

  1. The structure that controls the size of the pupil is the iris.
  2. The iris is the coloured part of the eye, located between the cornea and the lens.
  3. It contains muscles, specifically the sphincter pupillae and dilator pupillae, which regulate the size of the pupil in response to light conditions.
  4. In bright light, the pupil constricts (miosis) to limit light entry, while in dim light, it dilates (mydriasis) to allow more light for better vision.