Anatomy of the Eye Quiz

Light Regulation in the Eye

• The iris is the part of the eye that regulates the amount of light entering by controlling the size of the pupil.
• The pupil changes size in response to light intensity; constricting in bright light and dilating in dim light.

Function of the Lens

• The lens focuses light onto the retina, allowing for clear vision at various distances.
• It changes shape to help adjust focus for near or far objects, a process known as accommodation.

Main Functions

• The primary function of the lens (or cristalino in Spanish) is to refract light and ensure it is properly directed to the retina.
• Clarity and flexibility of the lens are crucial for maintaining vision quality as the eye ages.