Visual Assesme Flashcards
Well assessing visual acuity patient Misses the optotypes on the temporal side of the chart indicating a possible- - -
Visual field defect
The distance of 20 feet is used in VA assessment because it approximates- -
Optical infinity
Because there are no rods or cones in the optic nerve head a- blind spot is created in the normal visual field.
Physiologic
Two basic methods employed to map the field of vision are- and - perimetry
Kinetic and static
A localized area of reduce sensitivity in a visual field that is surrounded by an area of greater sensitivity is termed
Scotoma
A visual field defect occupying right or left half of the visual field is termed
Hemianopia
During visual field testing the decibel is the unit utilized to indicate the - Of the test object
Brightness
Normal peripheral limits of the visual field are- Degrees nasally,- degrees superiorly,- Degrees inferiorly, and- degrees temporally.
60, 60, 70, 90