Welch Allyn Co-Axial Ophthalmoscope Head

Welch Allyn Co-Axial Ophthalmoscope Head 3.5 V LED lamp illumination for true tissue colour and 18 unique aperture/filter combinations for greater versatility. Polarizing filter virtually eliminates corneal reflection. Detect corneal abrasions with the cobalt blue filter. Compatible with all existing Welch Allyn 3.5 V power sources.