Visual Disturbances Flashcards
MYOPIA is corrected by __________.
ConCAVE Lenses
This visual disturbance where a person has a LENS that is TOO THICK or EYEBALL that is TOO LONG.
Myopia
This visual disturbance where the person has a LENS that is TOO THIN or the EYEBALL is TOO SHORT.
Hyperopia
HYPEROPIA is corrected by ____________.
ConVEX Lenses
This is a visual disturbance where there is a LACK of ACCOMMODATION because the lens had ELASTICITY and cannot be thickened enough.
Presbyopia
PRESBYOPIA is corrected by __________.
Bifocals
This visual disturbance is also known as NEARSIGHTEDNESS.
Myopia
This visual disturbance is also known as FARSIGHTEDNESS.
Hyperopia
BIFOCALS have _______ lenses in the UPPER PART allowing for ________ vision.
Thin
Distance
BIFOCALS have _________ lenses on the LOWER part for _________ objects.
Thick
Nearby
This is a visual disturbance where the eye has UNEQUAL ARVATURE and the eye may be partly nearsighted, partly farsighted OR BOTH.
Astigmatism
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
CATARACTS were FORMALLY corrected by ______________.
Using glass with THICK lens