Product details:
This Welch Allyn 11720 3.5V Coaxial Ophthalmoscope Head features easier entry into the eye a larger field of view and reduced glare thanks to the patented Welch Allyn Coaxial Vision System. The halogen lamp insures true tissue color. This opthalmoscope has 18 unique aperture/filter combinations and a Polarizing filter which virtually eliminates corneal reflection.