Coaxial Ophthalmoscope 3.5V
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Manufacturer Part Number: 11720
-Compatible with all existing Welch Allyn 3.5V power sources
-Detect corneal abrasions with the cobalt blue filter
-Halogen HPX™ lamp provides 30% brighter, whiter light output for true tissue color and consistent, long-lasting illumination.
-Coaxial optics produce a shadow-free spot, easier entry into undilated pupils, and a larger field of view.
-Polarizing filter virtually eliminates corneal reflection.
-Red-free filter may be used with any aperture.
-Sealed optics keep out dust and dirt for years of maintenance-free operation.
-Rubber brow rest prevents scratching of eyeglasses.
-28 focusing lenses with a range of -25 to +40 diopters.
-18 unique aperture/filter combinations for greater versatility:
micro, small, and large spot sizes, cobalt blue filter for corneal exams, fixation target, and slit aperture (all on a 6-position, continuously rotating aperture dial).
-Plus: red-free filter, polarizing filter, and unfiltered Halogen HPX on a 3-position switch--each position can be engaged with each of the 6 positions of the aperture dial, for a total of 18 possible combinations.