Which of the Following Is NOT an Effect or Consequence

Which of the following is NOT an effect or consequence of presbyopia?

A) The pressure of fluid within the eye reaches an abnormally high level, and an individual experiences headaches and eye strain.
B) The lens of the eye becomes less elastic and less able to make focal adjustments to focus clearly on near objects.
C) An individual is less able to quickly adapt to variations in light or glare, which makes night driving particularly difficult.
D) The lens of the eye thickens and becomes slightly yellowed, and an individual is less sensitive to colours such as blue or violet.