Operation of the device
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Operation of the device
CAUTION - GENERAL HAZARDS
The patient should not touch the device with his/her hands. In particular,
the device should not be used as a support or an aid when standing up.
Do not use the device with sweaty or wet hands.
CAUTION - RISK OF PINCHING
Take precautions to ensure that fingers and hands are not pinched when
lifting the device.
Ensure that no parts of the body (fingers, hands), or objects, are trapped
beneath the device when lowering the device.
Do not place hand or fingers under the chin rest. This could result in damage
or injury.
CAUTION - RISK OF FALSE DIAGNOSIS
Direct and lateral light incidence to the front of the device or eye being
examined should be avoided. The best results will be obtained when the
examination room is slightly darkened (about 55 lux to 100 lux).
Ensure that the front lens of the objective is clean. If necessary, polish the
, page 108). A smudged objective
may lead to incorrect measurements.
Temperature fluctuations will cause vapor condensation on the protective
glass in the measurement window and on optical parts inside the device. In
this case, wait about 40 min until the condensation disappears before
performing measurements.
Summary of Contents for VISUREF 150
Page 1: ...ZEISS VISUREF 150 Autorefractor Keratometer Documentation set...
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Page 5: ...ZEISS VISUREF 150 Autorefractor Keratometer User manual...
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