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To guarantee the safety of the user and the patient at all times, a limit has been imposed on the
maximum period of time for which the laser beam can be switched on. If this limit is exceeded,
the screen shows the message: 'Laser Safety; laser timed out'. Image acquisition is automatically
interrupted and can only be continued after a specified waiting period (about 3 hours). However,
this will not usually occur during normal use of the instrument.
3.5 Care
The Heidelberg Retina Angiograph 2 is a precision optical instrument. Please protect the instru-
ment from dust and moisture, and avoid subjecting it to shocks or strong forces.
The lens surface on the front of the camera should be carefully cleaned at regular intervals (possi-
bly every day). For this purpose, it is best to use acetone and a soft cotton ball.
The non-optical surfaces of the instrument can be cleaned and/or disinfected as usual whenever
necessary. Before doing this, please turn the instrument off and pull out the power plug.
Summary of Contents for HRA 2
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