Welch Allyn SureSight Vision Screener - User Manual - Manual (Page 19)

15
Test Procedure:
• Push the “GO” button on the unit
• Check that the patient is fixated correctly throughout the test.
• Position the unit at the correct distance from the patient:
• When the unit is too far away, you will hear slow, low-pitched beeps. ••••
• Slowly move closer. At the correct distance (14”), you will hear a steady,
low tone. ———
• When the unit is too close, you will hear quick, high-pitched beeps.
……
• The crosshair will flash in synch with the tones.
• Look through the peephole and align the crosshair on the pupil of the
patient’s right eye. While the unit is acquiring data, you will hear a very high-
pitched chirping sound over the steady low tone. ° ° ° ° °
• If you are not acquiring data (steady tone without acquiring data chirps):
• Scan around the pupil in an outward-moving spiral until chirps begin, then
hold this location.
• Ask the patient if they can see the red light.
• When the test of the right eye is complete, you will hear the “tah-dah”
sound. (Testing resumes after 1 second, so you do not need to press any
buttons for the left eye test.)
• Without changing position, rotate the unit to the left eye and align the
crosshair over the pupil. Repeat test.
• At the end of the test, you will hear the “tah-dah” sound again.
• If the unit has not gathered enough good readings from either eye, you will
hear 5 tones when the test stops. - - - - - You must re-test that eye.
• To stop a test at any time, hold any button until 5 tones sound.