For precision optics, the Welch Allyn 3.5V Coaxial Ophthalmoscope Head is an ideal choice. it features Welch Allyn's Patented Coaxial Vision optics, and 68 lenses in single-diopter steps. Halogen lamp illumination insure true tissue color and a Polarizing filter virtually eliminates corneal reflection.
Fast delivery,great pricing and works very well!
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