2.87 understand the function of the eye in focusing near and distant objects, and in responding to changes in light intensity

• The light enters the eye passes through the cornea.Then the light cross the watery compartment and passes through the pupil and from there it enters the adjustable lens.
• The transparent structure containing highly crystallines proteins.
• The lens refract the light and sent the message to the brain.
• The lens has to adjust when looking at the image which is when you look at a distance objects.
• When you look at up close objects the lens has to adjust to he scatter light rays.