18
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
- When over-refracting through glasses, aim higher
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
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