10 Questions
What is the first structure that light hits as it enters the eye from the television?
Cornea
What is the function of the cornea besides bending light as it enters the eye?
Sensing pain
Which of the following is NOT one of the structures involved in helping us see?
Eyelash
What happens if someone pokes your eye gently away from the cornea?
You might be able to keep your eye open if you try really hard
How many structures are mentioned as being involved in helping us see at the front of the eye?
5
What is the function of the iris?
To give eye color and regulate light entry
What is the function of the pupil?
To contract in bright light and dilate in darkness
How does the lens help in vision?
By focusing light rays to see objects near and far away
What would happen if the iris did not have the ability to change the size of the pupil?
You would have difficulty focusing on objects near and far
What role do the ciliary muscles play in vision?
Helping the eye adjust focus on objects near and far away
Test your knowledge about the important structures located at the front of the eye that are involved in the initial process of light entering and vision formation. Learn about the functions and characteristics of key components like the cornea and iris.
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