ii
Thank you for purchasing the Welch Allyn No. 18200
3.5v halogen streak retinoscope. This instrument
has been designed to meet the needs of today’s
practitioners and incorporates features not found
on any other retinoscope:
1. External Focusing Sleeve—unique planetary gear
system allows for easy adjustment no matter what size
hand or how instrument is held. Continuous 360°
rotation. Maintains the same plane of focus during
rotation.
2. Improved Light Output—brighter halogen lamp
provides 50 percent more intensity than previous lamps.
The reflex is now crisper and easier to see in all patient’s
eyes. Retinoscopy can be done faster and more accurately.
3. Dust-free Optics—new housings and glass cover on the
front keep the instrument cleaner longer.
4. Crossed Linear Polarizing Filter—dramatically
reduces glare from lenses. Allows retinoscopy to be
performed closer to the axis of the correcting lenses.
5. Fixation Cards—new cards that easily attach increase
the ease with which dynamic retinoscopy is performed.
6. Improved Optics—glare and shadows have been
eliminated for a clearer and more precise view.
7. Interchangeability—By simply changing the lamp,
the streak retinoscope can be converted to a spot
retinoscope.
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