Chapter 17 - Eye and Ear - Diagnostic Procedures Flashcards
Fluorescein angiography
dye injection to examine blood flow in the retina
Ophthalmoscopy
visual examination of the interior of the eye through dilated pupil
Slit lamp microscopy
magnified view of expanded number of eye structures
Visual acuity test
assesses clarity of vision
How is the Snellen chart used?
Read the chart 20 feet from the chart. Normal vision is 20/20.
Ex. The first number is how far the patient is standing from the chart. The second number is how far a person with normal vision can read the chart. 20/200 a health person with 20/20 vision could stand back at 200 feet and see the chart.
Visual field test
measures visual fields when eyes are fixed forward (looking straight ahead)