Visual Function Tests Flashcards Preview

Reduction Of Risk Potential > Visual Function Tests > Flashcards

Flashcards in Visual Function Tests Deck (3):
1

Tonometry

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

Visual fields

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

Snellen test

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.