Operation
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Explaining the i.Profiler
® plus
measurement procedure
to the patient
WARNING - GENERAL HAZARDS
Persons who are not authorized to use the device (see chapter
, page 7) may not be left unattended at or in the vicinity of the
device.
CAUTION - RISK OF MEASURING ERRORS
A misinterpretation of results may occur in the following patient categories
or measurement may not be possible.
•
Unable to steadily fixate the fixation mark with the eye under
examination (e.g. in the case of nystagmus, extremely poor visus, lack of
concentration)
•
Unable to follow the instructions of the user
•
Unable to position him/herself upright in front of the medical device
•
Lacking transparency of the optical media of the eye for wavefront/
refraction measurements (e.g. cataract with lens clouding stronger than
grade NO1 according to LOCS III (Lens Opacity Classification System III)
•
Deficient specular reflection of the cornea for topography or wavefront
measurements (e.g. distortion of the tear film, scarring or caustic burn of
the cornea)
•
Pupil opening too small (< 2 mm) for wavefront measurement
•
Complete or partial coverage of the pupil caused by closed or
inadequate palpebral fissure
•
Forehead or chin injuries that prevent the head from being supported on
the head/chin rest
•
Morphological changes of the retinal anatomy in the region of the fovea
for wavefront/refraction measurements (e.g. retinal detachment, edema,
ulcer)
•
Refractive errors or keratometry outside the measurement range
