16
13912-101 Rev. B
Illuminated
Nosepiece
Airtube
The AT555 features a fully automated alignment system that enables the instrument to
align itself to the apex of the patient’s left or right eye. This innovative system makes the
measurement process quicker and more comfortable for the patient. Perform the following
steps to take a measurement of the patient’s eye.
1. Instruct the patient to locate the airtube inside the red circle on the end of the nose-
piece.
2. After they have located the airtube, have the patient find the green target inside the
airtube and then slowly lean forward until their forehead is on the soft pad in the middle
of the Forehead Rest. Refer to Figures 7 and 8.
Instructions for Use (Continued)
Alignment & Measurement (Continued)
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