WELCH ALLYN OPHTHALMOSCOPE HEAD ONLY 3.5V
Halogen HPXTM lamp provides light for true tissue color and long-lasting performance.
Detect corneal abrasions with cobalt blue filter.
Polarizing filter virtually eliminates corneal reflection.
Sealed optics keep out dust and dirt.
18 unique aperture/filter combinations for greater versatility.
Red-free filter may be used with any aperture.
28 focusing lenses with a range of -25 to +40 diopters.