The purpose of this paper is to call attention to a simple, rapid method of visual field gross screening. The title of this test might be called "Finger-Counting Fields."
The patient is asked to gently occlude all the vision of one eye with the palm of his hand and stare at the nose of the examiner. The patient is then asked to count either "one or two" fingers the examiner is holding at right angles to the line of peripheral vision, 1 to 3 ft. from the patient's eye, 40 to 60 degrees from fixation, in the 4 quadrants of the visual field.
When the fingers are held at greater distances from the patient's eye, the test is made more sensitive. The average normaleyed patient can count correctly either 1 or 2 fingers to a distance of 6 to 10 ft. from the single eye at an angle of 40
WELSH RC. Finger Counting in the Four Quadrants as a Method of Visual Field Gross Screening. Arch Ophthalmol. 1961;66(5):678–679. doi:10.1001/archopht.1961.00960010680012
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