The Eye Flashcards
Protection of the eye?
Bony eye socket, fatty tissue, sclera, eyelid, eyelashes and eyebrows, tear glands; tears and conjunctiva.
What is the fovea?
The fovea is a depression in the retina with a high concentrate of cones.
What are cones?
Cones are photoreceptor cells which detect color and bright light.
What are rods?
Rods are photoreceptor cells which detect dim or no light.
What color is the retina?
Turquoise.
What is it called when you are short sighted and how is it corrected?
Myopia and with a concave lens
What is it called when you are long sighted and how is it corrected?
Hypermetropia and with a convex lens
What is the choroid?
Colored vasular layer between retina and sclera
What is the sclera?
The white part of the eye
What order does light hit the eye?
Cornea- aqueous humor- pupil- lens- vitrious humor- retina- optic nerve- brain.
What is the aqueous humor?
Transparent watery liquid norishing the eye
What role does the iris play in forming an image?
The iris contracts when there is a lot of light and relaxes when there is little to no light.
What role does the lens play in forming an image?
The lens focuses light and directs it towards the retina
Convex lens?
Concave lens?
