Eye Anatomy
This part of the eye gives it its color. It can open and close to change the size of the pupil.
What is the iris?
Nearsightedness: focal point is in front of the retina causing vision to be blurred
What is Myopia?
this chart consists of several sets of letters in different sizes printed on a white card.
What is the Snellen Eye Chart?
lens or outer layer becomes cloudy
What is a cataract?
Myopia is corrected with a ____ lens
What is concave?
The opening of the eye where light enters
What is the pupil?
farsightedness: focal point is behind the retina and vision
What is Hyperopia?
color vision test for detection of red-green color deficiencies
What is the Ishihara test?
excessive pressure within the aqueous humor area of the eye
what is glaucoma?
Hyperopia can be corrected by a ____ lens
what is convex?
This part of the eye focuses light onto the retina.
What is the lens?
Irregular shape of lens or cornea causing blurred vision
What is astigmatism?
changing of the shape of the lens that occurs when the normal eye is focused for close vision.
What is the Accommodation Test?
"pink eye"; contagious, bacterial infection of the conjunctiva
what is conjuctivitis?
The most common treatments for glaucoma are ____
What are eye drops?
The clear part of the eye that light will first pass through.
What is the cornea?
As the lens inside the eye ages it becomes less able to accommodate itself so as to focus light from nearby objects clearly.
What is presbyopia?
is a term used to express the clarity or sharpness of vision measured at a distance of 20 feet.
What is Visual acuity?
Leading cause of blindness; gradual loss of vision due to an accumulation of material on the central part of the retina
what is macular degeneration?
Incision in cornea to correct myopia
what is radial keratotomy?
Bathes and nourishes the lens and maintains pressure within the eye.
What is the aqueous humor?
What is a refractive disorder?
exam that measures a person's prescription for eyeglasses or contact lenses
What is a refraction test?
damage to retina due to breakage of blood vessels in the eye
what is retinopathy?
A _____ can be used to vaporise tissue, changing the shape of the cornea. Slimming it down makes it less powerful and can improve myopia