Welch Allyn 11720-L Ophthalmoscope

Welch Allyn 11720-L Direct Ophthalmoscope Features:

• 1-Year Manufacturer Warranty
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• Long-lasting LED illumination
• 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
• Look for the traditional "flat-top" design you've come to trust

MICRO-SPOT APERTURE- allows quick entry into small, undilated pupils.

LARGE APERTURE-standard aperture for a dilated pupil and general examination of the eye.

SLIT-used to determine levels of lesions and tumors.

SMALL APERTURE-provides an excellent view of the fundus through an undilated pupil.

FIXATION APERTURE-has graduated cross-hairs for measuring eccentric fixation or locating lesions.

RED-FREE FILTER-excludes red rays from the examination field for easy identification of veins, arteries, and nerve fibers.

COBALT FILTER-used with fluorescein dye to view small lesions, abrasions, and foreign objects on the cornea.