Diagnostic Procedures - Vision and Eyes
ophthalmascopy
fundoscopy; use of an ophthalmoscope to visually examine the back of the eye
visual field testing
Performed to determine losses in peripheral vision; perimetry
slit-lamp ophthalmoscopy
a narrow beam of light is focused onto parts of the eye to permit the physician to examine the structures at the front of the eye (cornea, iris, lens)
fluorescein angiography
a radiographic study of the blood vessels in the retina of the eye following the intravenous injection of a fluorescein dye as a contrast medium
cover test
an examination of how the two eyes work together and is used to assess binocular vision; one eye at a time is covered while the patient focuses on an object across the room.
refraction test
determine an eye's refractive error so that the best corrective lenses can be prescribed
dilation
enlargement of pupils
Snellen Chart (SC)
measure visual acuity; 20/20 vision
mydriatic drops
medicated drops placed into the eyes that produce temporary paralysis
fluorescein staining
the application of fluorescent dye to the surface of the eye via eye drops or a strip applicator
tonometry
the measurement of intraocular pressure
diopter
the unit of measurement of a lens' refractive power
