What is the dark opening at the centre of the iris, through which light enters the eye lens, called?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Pupil
The pupil is the opening in the middle of the iris, lying between the aqueous humour and the eye lens. It looks black because the light entering it is absorbed inside the eye. The iris changes the size of the pupil to control how much light enters the eye.