Light and Optics Grade 8 Review
Refraction is -
✅ The bending of light
The optic nerve -
✅ sends messages from your retina to your brain
The retina -
✅ Light strikes the retina and lends the message to the optic nerve. Contains
the rods and cones.
The pupil is -
✅ a hole in the eye that lets in light.
The cornea -
✅ protects the eye and starts refraction.
The iris is -
✅ the colored part of your eye that controls the size of your pupil.
The retina has a layer filed with -
✅ photoceptors
Rods control -
✅ light and darkness vision
Cone control -
✅ color vision
To correct farsightedness, you would use -
✅ convex lens
The issue with nearsightedness is the -
✅ light focuses before the retina
