Visual Function Tests Flashcards
1
Q
Tonometry
A
Intraocular pressur. Registers degree of indentation of cornea. Pressured increased in glaucoma. Client will be in recumbent position.
Advise not to squint, cough, or hold breath during procedure.
2
Q
Visual fields
A
Range of vision.
Client is asked to fix eyes on a point on a chart. Instructed to indicate when patient 1st sees pointer. Repeated around 360 degrees of a circle.
3
Q
Snellen test
A
Visual acuity. Patient stands 20 feet from chart of letters. One eye is covered at a time. Indicates comparison of distance at which the patient reads to what normal eye sees at 20 feet.
