Welch Allyn 3.5V LED Lamp Opthalmoscope Head Model 11720

he patented Welch Allyn Coaxial Vision System facilitates ophthalmoscopy by enabling easier entry into the eye, a larger field of view, and reduced glare compared to standard ophthalmoscopes Halogen HPX® lamp illumination for true tissue color Polarizing filter virtually eliminates corneal reflection Compatible with all existing Welch Allyn 3.5 V power sources 18 unique aperture/filter combinations for greater versatility Detect corneal abrasions with the cobalt blue filter Look for the traditional "flat-top" design you've come to trust Power Handle Not included