COA Flashcards - Visual Fields 4% of exam
The _____ visual field test compares the boundaries of the patient’s visual field with that of the examiner.
Confrontation
Gross evaluation of the patient’s peripheral vision can be accomplished with _____ visual field testing.
Confrontation
The Amsler grid test determines the presence and location of defects in the _____ portion of the visual field.
Central
During Amsler grid testing the patient should be instructed to view the grid through his or her _____ correction.
Near
Because there are no rods or cones in the optic nerve head a _____ blind spot is created in the normal visual field.
Physiologic
A defect in the patient’s superior temporal retina, will affect the patient’s _____ field of vision.
Inferior nasal
The two basic methods employed to map the field of vision are _____ and _____ perimetry
Kinetic, static
A localized area of reduced sensitivity in a visual field that is surrounded by an area of greater sensitivity is termed a _____.
Scotoma
During visual field testing the decibel is the unit utilized to indicate the _____ of the test object.
Brightness
A visual field defect occupying the right or left half of the visual is termed a _____.
Hemiaopia
A presbyopic patient’s near add should be used in testing the central _____ degrees of the visual field.
Thirty (30)
The presence of ptosis can result in a _____ visual field defect.
Superior
A pupil diameter of less than _____ can produce a contraction of the visual field.
Two to two and one-half millimeters (2.5mm)
Normal peripheral limits of the visual field are _____ degrees nasally, _____ degrees superiorly, _____ degrees inferiorly, and _____ degrees temporally.
60, 60, 70, 90
In the grayscale printout of an automated perimeter the lighter area corresponds to _____ levels of illumination being seen by the patient.
Dim
