-
Astigmatism
impaired vision caused by irregularities in the curvature of the cornea or the lens
-
Blind spot
The area on the retina that marks the site of intrance of the optic nerve.
-
Blindness
No perception of visual stimuli; lack or loss of ability to see.
-
Legal blindness
Less then 20/200 vision with corrective eyeglasses.
-
Braille
A system of writing and printing by means of raised points representing letters; enables people with a visual disability to read by touch.
-
Cataract
Clouding or opacity of the lens of an eye
-
Color blindness
Inability to distinguish between certian colors; most common in red/green confusion; color vision is a function of the cones of the retina.
-
Diplopia
Double vision; perception of two images of a single object
-
Glaucoma
Group of diseases of the eye characterized by intraocular pressure from pathologic changes in the optic disc; person have visual-field defects
-
farsightedness; eyeball is shorter behind the retina; vision is better for distant objects than for near objects
hyperopia
-
nearsightedness; longer eyeball from front to back so the image is focused in front of the retina
myopia
-
night blindness; may be hereditary or related to vitamin deficiency
nyctalopia
-
pertaining to the eye
ocular
-
physician who specializes in diagnosing and prescribing tx for defects, injuries, and diseases of the eye (obsolete term: oculist)
opthamologist
-
the branch of medicine that deals with the anatomy, diagnosis, pathology, and tx of the eye
opthamology
-
tech who prepares and adapts lenses; fills Rx from an opthamologist
optician
-
a specialist in optometry, the measurement of visual acuity and adaptation of lenses for correction of visual defects
optometrist
-
inflammation of the retina
retinitis
-
noninflammatory disease of the retina; identified by the chronic disease of which it is a symptom; for example, diabetic retinopathy reflects the retinal manifestations of diabetes mellitus, including microaneurysms
retniopathy
|
|