quiz

Human Eye

16. What is the farthest point up to which a normal eye can see objects clearly? 

  • A) 10 cm
  • B) 25 cm
  • C) 50 cm
  • D) Infinity
D) Infinity Explanation

17. Which part of the eye is commonly referred to as the “blind spot”?

  • A) Cornea
  • B) Pupil
  • C) Optic Disc
  • D) Iris
C) Optic Disc Explanation

18. Which eye condition can be managed with reading glasses or multifocal lenses?

  • A) Hypermetropia
  • B) Glaucoma
  • C) Cataract
  • D) Presbyopia
D) Presbyopia Explanation

19. How many muscles control the movements of each eye? 

  • A) 2
  • B) 4
  • C) 6
  • D) 8
C) 6 Explanation

20. What part of the human eye is commonly known as the “white of the eye”? 

  • A) Cornea
  • B) Sclera
  • C) Iris
  • D) Conjunctiva
B) Sclera Explanation

21. During which sleep stage do the most vivid dreams occur:

  • A) REM sleep
  • B) NREM sleep
  • C) Deep sleep
  • D) Light sleep
A) REM sleep Explanation

22. Where is the aqueous humor found within the eye? 

  • A) Between the lens and the vitreous body
  • B) Between the cornea and the iris
  • C) Between the iris and the ciliary body
  • D) Between the sclera and the choroid
B) Between the cornea and the iris  Explanation

23. The clouding of the eye’s natural lens is known as:

  • A) Glaucoma
  • B) Cataracts
  • C)  Macular degeneration
  • D) Conjunctivitis
B) Cataracts Explanation

24. Which cells in the retina are responsible for black-and-white images? 

  • A) Rods
  • B)  Cones
  • C) Ganglion cells
  • D) Bipolar cells
A) Rods Explanation

25. Which disease is known as the “silent thief of sight”?

  • A) Cataracts
  • B) Glaucoma
  • C) Macular degeneration
  • D) Retinitis pigmentosa
B) Glaucoma Explanation

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