Vision

Question 1

Light

Answer 1

• One form of electromagnetic energy that travels in waves.

Question 2

Wavelength

Answer 2

Distance from one peak wave to another.

Question 3

Cornea

Answer 3

-Clear membrane that covers the front of the eye.
-It helps gather and direct incoming light.

Question 4

Pupil

Answer 4

-Black opening in the middle of the iris that changes size to let in different amounts of light.
-Surrounded by the iris.

Question 5

Iris

Answer 5

-Colored structure.
-A ring of muscular tissue that contracts or expands to precisely control the size of the pupil and amount of light entering the eyes.
-What we refer to when we say someone has brown eyes.
-In dim light iris widens to let light in and in bright light the iris narrows.

Question 6

Lens

Answer 6

-Transparent structure, behind the pupil, tha actively focuses, or bends, light as it enters the eye.

Question 7

Accomodation

Answer 7

Process where lens thins or thickens to bend or focus the incoming light so that the light falls on the retina.