Eye Anatomy
The colored circle of your eyes is called the _________.
What is the Iris.
Signals are sent down which nerve to the brain.
The optic nerve.
Muscles of the Iris is this type of muscle.
Smooth.
When are person can not see all colors it is called _______.
Colorblind
If retinal detachment it is not corrected it can lead to this.
Permanent blindness
The white outer part of the eyeball is called __________.
What is the Sclera
The retina contains special cells called.
Rods and cones.
There are 7 million of these in your retina.
What are cones
The fovea is where the __________ are most concentrated.
The cones.
If your cornea is not shaped correctly it is called.
Astigmatism
The clear window dome in the front of your eye is called the _______.
What is the Cornea.
The lining of the inside of your eye is called ______.
The retina.
There are 120 to 150 million of these in your retina.
What are rods.
The lens of your eye becomes rounder and fatter when ______________.
focusing muscles are contracted on nearby objects. (focusing)
These provide protection to the eye by producing liquid that moistens, cleanses and disinfects.
What are tear ducts.
The eye is covered in a layer of ___________.
What is fat?
the retina allows you to see in _______ and ________.
Low light and color.
It increases our depth perception (the ability to determine how far away something is).
When your lens is relaxed and becomes flatter it allows you to see __________ objects.
distant objects.
Hyperopia is the medical term for __________.
Farsighted.
Where does light enter the eye?
The pupil.
Cones enable you to see in _________.
Color.
It moistens the back of the cornea and the iris.
What is Aqueous Humor.
The _______ is in control of more than half of your focusing power.
Cornea
The medical term for pink eye is called.
Conjunctivitis.
The _______ automatically bends the light that comes into you eye.
Cornea
What 3 colors are cones sensitive to.
Red, green and blue.
Light coming into the eye is focused on to the ________.
Retina
What helps us see in the dark, the shape of things and in black and white.
The rods of the eye.
Myopia is the medical term for __________.
Nearsighted