Welch Allyn SureSight Vision Screener - User Manual - Manual (Page 20)

16
Important Operating Tips
To insure accurate results and quick tests:
• Ambient Lighting :
- Don’t perform by uncovered windows
- Dimmed light can help for adults w/small pupils
•
Too dim can make it harder to find the pupil for those with dark eyes.
• Entry Angle
- Position unit straight and level with patient
- Rotate unit to test left eye
• Fixation : “Look at the red light”
- Remind patient and monitor fixation
• Correct Distance/Not Taking Readings?
-
Are you square and level?
- Scan around the pupil
- Ask patient if they see the red light
Helpful hints for testing pre-schoolers
• Helpful phrases that will grab the child’s attention .
- “look into the video camera while I take a movie of you”
- “look in the green circle at the red dot inside and you will hear a little
birdie chirp”
- “look at the red dot inside the flashing green lights and tell me when it
changes color”
• Helpful tips to keeping a child still while administering the test.
- have child sit in his/her parent’s lap
- have child lie down