This Welch Allyn 3.5 volt coaxial ophthalmoscope head provides a long
lasting, consistent, cool, bright white, Halogen light that ensures you
observe true tissue colour on every exam, with no reflections or
obstructions the axis of illumination is now coincidental with the axis
of vision into the retina, which eliminates the shadows that happen with
standard optics and the polarizing filter nearly eliminates corneal
reflection. twenty eight viewing lenss, ranging from -25 to +40 diopters
can be accessed with our convenient one hand selection dial, helping to
compensate for refractive error, positional changes in the
ophthalmoscope or changes in viewing requirements. Halogen HPX lamp
provides light for true tissue colour and long-lasting performance.
Detect corneal abrasions with cobalt blue filter
Polarizing filter virtually eliminates corneal reflection
Sealed optics keep out dust and dirt
18 unique aperture/filter combinations for greater versatility
Red-free filter may be used with any aperture
28 focusing lenss with a range of -25 to +40 diopters.