Measuring A Patient's Eye; Selecting Measurement Mode; Regulating The Patient's Eye Level; Focusing - Zeiss VISUREF 100 User Manual

Measuring a patient's eye

CAUTION - RISK OF INJURY
Pull the refractometer away from the patient when moving right or left to
avoid injuring the face.
CAUTION - RISK OF PINCHING
Do not place hand or fingers under the chin rest. This could result in
damage or injury.

Selecting measurement mode

• Press the MODE button repeatedly until the desired measurement mode
appears (see section Measurement modes, page 31).
• Press IOL button when measuring a patient who has an IOL. The IOL
icon will appear (9, Fig. 6).
• Select the measurement release mode (MANU/AUTO).

Regulating the patient's eye level

• Ask the patient to place his/her chin on the chin rest and lean the
forehead against the forehead rest.
• Using the height adjustment buttons of the chin rest (6, Fig. 3), adjust the
height of patient's eyes by using the reference mark (2, Fig. 4).

Focusing

• Move the stage to the left side and focus on the right eye of the patient.
• Instruct the patient to relax and look at the red-colored part in the center
of target balloon.
• Ask the patient to open his/her eye until the kerato ring images (Fig. 9)
are focused.
• Use the joystick to move the bright dot in the center of the pupil into the
inner ring mark.
• Move the joystick forward and backward to focus the kerato ring image.
Operation of the device
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