If there is a strong light, the pupil gets smaller. If there is a weak light, the pupil gets larger. The iris is the colored area of the eye. The LENS is the eye's primary light focus. It is located behind the pupil.
Muscles attached to the lens allow it to focus light.
The vitreous humor is the clear jelly that protects the retina. The white of the eyeball holds all the parts together in the socket. Have students draw and label parts of the eye as shown on the diagram. On a sheet of paper, write two of the parts of the eye we have discussed today and explain their functions. This Classroom Connector addresses Instructional Objective 1.03.