WELCH ALLYN OPHTHALMOSCOPE 3.5V HEAD
Uses halogen light for true tissue color and consistent, long-lasting illumination.
6 apertures for generalist use: micro, small, and large spot sizes, fixation target,
slit aperture, and red-free filter.28 focusing lenses with a range of -25 to +40 diopters.
Rubber brow rest prevents scratching of eyeglasses.