Visual accommodation involves the ability to ____.
A) change the sensitivity of the rods and cones by means of neurotransmitters
B) change the position of the retina
C) change the thickness of the lens by contracting or relaxing certain muscles
D) protect the eyeball from foreign matter
E) prevent eye strain

Question

Visual accommodation involves the ability to ____.  
A) change the sensitivity of the rods and cones by means of neurotransmitters
B) change the position of the retina
C) change the thickness of the lens by contracting or relaxing certain muscles
D) protect the eyeball from foreign matter
E) prevent eye strain

Quizplus · Accepted Answer

Visual accommodation involves changing the shape of the lens in response to the distance of an object. This is achieved by contracting or relaxing certain muscles to change the thickness of the lens, allowing it to focus light onto the retina. Changing the sensitivity of the rods and cones, changing the position of the retina, protecting the eyeball, and preventing eye strain are not part of visual accommodation.

Visual Accommodation Involves the Ability to ____