Certified Paraoptometric
emmetropia
accommodation relaxed, image will focus on back of retina. no correction needed
myopia
Type of ammetropia, image focused on front of retina and usually caused by eye being too long
accommodation
ability of eye to focus objects from distance to near
plus lens
corrects hyperopia
retinoscope
indicates pt refractive error when all motion in every direction is stopped when light is moving across
pupil
alternating esotropia
condition in which the patient fixates with only one eye while the other eye turns in
,visual field testing
determines the area of space visible to the eye
perimetry
used to measure the visual field
biomicroscope
instrument that allows close examination of the lids and lashes
non-compliance
the most common reason patients stop wearing contact lenses
vertex distance between the contact lens and spectacle lens
a contact lens prescription and a spectacle prescription May differ because of this
Edge thickness of a contact lens
is an important factor in the comfort of the lens
, contact lens order includes
lens brand or type, base curve, overall diameter, and the lens power
diastolic pressure
the amount of force when the heart is at rest
astigmatism
an eye in which the image is not focused at one point but rather at two points
hyperopia
farsightedness; when the accommodation is relaxed and the image in the eye focused theoretically
behind the eye resulting in blurry vision
myopia
nearsightedness when the accommodation is relaxed in the image in the eye Focused before the retina
resulting in blurry distant vision
presbyopia
loss of ability to see clearly at near
emmetropia
accommodation relaxed, image will focus on back of retina. no correction needed
myopia
Type of ammetropia, image focused on front of retina and usually caused by eye being too long
accommodation
ability of eye to focus objects from distance to near
plus lens
corrects hyperopia
retinoscope
indicates pt refractive error when all motion in every direction is stopped when light is moving across
pupil
alternating esotropia
condition in which the patient fixates with only one eye while the other eye turns in
,visual field testing
determines the area of space visible to the eye
perimetry
used to measure the visual field
biomicroscope
instrument that allows close examination of the lids and lashes
non-compliance
the most common reason patients stop wearing contact lenses
vertex distance between the contact lens and spectacle lens
a contact lens prescription and a spectacle prescription May differ because of this
Edge thickness of a contact lens
is an important factor in the comfort of the lens
, contact lens order includes
lens brand or type, base curve, overall diameter, and the lens power
diastolic pressure
the amount of force when the heart is at rest
astigmatism
an eye in which the image is not focused at one point but rather at two points
hyperopia
farsightedness; when the accommodation is relaxed and the image in the eye focused theoretically
behind the eye resulting in blurry vision
myopia
nearsightedness when the accommodation is relaxed in the image in the eye Focused before the retina
resulting in blurry distant vision
presbyopia
loss of ability to see clearly at near
