NSG120 PRACTICE PAPER 2026 COMPLETE
QUESTIONS AND SOLUTIONS GRADED A+
● What does the Snellen chart measure? Answer: Visual acuity.
● What is tonometry used for? Answer: To assess intraocular pressure.
● What does PERRLA stand for? Answer: Pupils Equal, Round,
Reactive to Light and Accommodation.
● What is anisocoria? Answer: A difference in the size of the pupils.
● What is the sclera? Answer: The outermost layer of the eye, visible as
the white part.
● What are the functions of the ciliary processes? Answer: To secrete
aqueous humor.
● What are the two types of photo-receptive cells in the retina? Answer:
Rods (for night vision) and cones (for color vision).
● What is myopia? Answer: Nearsightedness, the ability to see near
objects clearly.
QUESTIONS AND SOLUTIONS GRADED A+
● What does the Snellen chart measure? Answer: Visual acuity.
● What is tonometry used for? Answer: To assess intraocular pressure.
● What does PERRLA stand for? Answer: Pupils Equal, Round,
Reactive to Light and Accommodation.
● What is anisocoria? Answer: A difference in the size of the pupils.
● What is the sclera? Answer: The outermost layer of the eye, visible as
the white part.
● What are the functions of the ciliary processes? Answer: To secrete
aqueous humor.
● What are the two types of photo-receptive cells in the retina? Answer:
Rods (for night vision) and cones (for color vision).
● What is myopia? Answer: Nearsightedness, the ability to see near
objects clearly.
