Flashcards in Visual Disturbances Deck (21):
This visual disturbance where a person has a LENS that is TOO THICK or EYEBALL that is TOO LONG.
MYOPIA is corrected by __________.
This visual disturbance where the person has a LENS that is TOO THIN or the EYEBALL is TOO SHORT.
HYPEROPIA is corrected by ____________.
This is a visual disturbance where there is a LACK of ACCOMMODATION because the lens had ELASTICITY and cannot be thickened enough.
PRESBYOPIA is corrected by __________.
This visual disturbance is also known as NEARSIGHTEDNESS.
This visual disturbance is also known as FARSIGHTEDNESS.
BIFOCALS have _______ lenses in the UPPER PART allowing for ________ vision.
BIFOCALS have _________ lenses on the LOWER part for _________ objects.
This is a visual disturbance where the eye has UNEQUAL ARVATURE and the eye may be partly nearsighted, partly farsighted OR BOTH.
True or False: ASTIGMATISM is associated with the retina.
FALSE, ASTIGMATISM is associated with the CORNEA.
True or False: with ASTIGMATISM, when light enters the eye, it is refracted more in one direction than the other.
TRUE, IN ADDITION it allows only part of the object to be in focus.
This visual disturbance is characterized by CLOUDING of the LENS due to AGING or INJURY.
CATARACTS were FORMALLY corrected by ______________.
Using glass with THICK lens
CATARACTS is CURRENTLY corrected by ______________.
Implanting a SUBSTITUTE LENS
This visual disturbance occurs when the BRAIN SUPPRESSES INPUT from one eye and depends upon info from the other eye.
AMBLYOPIA is corrected by ____________.
Initially COVERING THE GOOD EYE, forcing the weak to function.
This visual disturbance occurs when the AQUEOUS HUMOR ACCUMULATES and pressure is put on the OPTIC NERVE.
GLAUCOMA was FORMALLY corrected by ___________.