ch.16 Medical Terminology

accomodation (Acc)

Ability of eye to adjust to variation in distance
achromatopsia
- Profound inability to see in color from birth
- aka color blindness
amblyopia
- Loss of vision not due to any disease; not correctable with glasses; persons with amblyopia wear a patch over one eye to work
- commonly called lazy eye
astigmatism
- uneven bending of light rays caused by irregular curvature of cornea; image is fuzzy;
- corrected with cylindrical lenses
cataract
- Lens becomes cloudy or opaque
- results in whole vision field becoming blurry
- treatment is usually surgical removal of cataract and replacement of lens with artificial lens
Color vision tests

Use of multicolored charts to determine ability of patient to recognize color
Corneal abrasion

Scraping away of outer layer of cornea
cryoextraction

Procedure to remove lens with cataract using an extremely cold probe
diabetic retinopathy
- Development of small hemorrhages and edema in retina as a result of diabetes mellitus
- dark spots appear in visual field
- laser surgery can be necessary for treatment

Author

nmille32

251649

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ch.16 Medical Terminology

Description

ch.16 Medical Terminology Opthamalogy

Updated

2013-12-08T18:01:26Z