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13
5. Setting up and using the All Pupil II
Filter Selector Bar (M)
The All Pupil II has two selectable filters built in to the
head unit. Select the appropriate filter by sliding the Filter
Selector Bar (M) either left or right from its mid position.
The Filter Selector Bar is marked with dots to indicate in
which direction to slide it for each filter.
Red Free Filter
This filter reduces red light, so blood will appear black,
silhouetted against a dark background.
Diffuser
This unique extra wide beam of diffused light permits a
more relaxed technique during more challenging fundus
examinations. Beginners may also find this aperture
particularly helpful since, in order to achieve a full lens
image, the alignment between the headset, the
condensing lens and the pupil is not as critical as with the
conventional beam.
The instrument provides protection from UV/IR.
which direction to slide it for each filter.
more relaxed technique during more challenging fundus
examinations. Beginners may also find this aperture
particularly helpful since, in order to achieve a full lens
image, the alignment between the headset, the
condensing lens and the pupil is not as critical as with the
conventional beam.
The instrument provides protection from UV/IR.
