Structure of the Human Eye

Regulates the amount of light entering the eye and gives the eye its color.

• Iris
• Lens
• Pupil
• Retina

What is letter B?

• Optic nerve
• Lens
• Cornea
• Retina

What is letter E?

• Vitreous humor
• Retina
• Cornea
• Optic nerve

What is letter F?

• Retina
• Pupil
• Vitreous humor
• Iris

What is letter G?

• Sclera
• Retina
• Lens
• Vitreous humor

What is letter H?

• Cornea
• Optic nerve
• Iris
• Retina

What is letter I?

• Cornea
• Lens
• Vitreous humor
• Optic nerve

This part of the eye carries the message from your eye to the part of your brain that controls vision. 

• cornea
• lens
• optic nerve
• retina

The part of your eye that gives it its color.  It is a muscle that controls the size of your pupil.

• cornea
• lens
• pupi
• iris

The first part of the eye that light hits. 

• lens
• cornea
• pupil
• retina