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BASIC OPERATIONS
THE PATIENT'S EYE IS WIDELY OFF THE SCREEN CENTER
If the patient's eye is off the screen center too much, alignment is not done or the align-
ment operation takes long.
1 Tilt the control lever and bring the patient's eye closer to the screen center.
If the patient's eye leans to the left side of the color LCD monitor screen, for example, tilt
the control lever to the left.