Master Product Catalog - Welch Allyn

OPHTHALMOSCOPESEye, Ear, Nose & Throat3.5 V Coaxial OphthalmoscopeThe patented Welch Allyn Coaxial Vision System facilitatesophthalmoscopy by enabling easier entry into the eye, a larger fieldof view, and reduced glare compared to standard ophthalmoscopes.■■■■■■■■■■■■■■■■Halogen HPX ® lamp provides light for true tissuecolor and long-lasting performanceCoaxial optics produce a shadow-free spot, easier entry into undilatedpupils, and a larger field of view versus standard ophthalmoscopesDetect corneal abrasions with cobalt blue filterPolarizing filter virtually eliminates corneal reflectionSealed optics keep out dust and dirt18 unique aperture/filter combinations for greater versatilityRed-free filter may be used with any aperture28 focusing lenses with a range of -25 to +40 dioptersCoaxialOpticalSystemApertureSelectionDialCompact HeadDesign11720Coaxial Ophthalmoscope(head only)Triple-sealedOphthalmoscopeCross-linearPolarizingFilterLensSelectionDisc11720 Coaxial Ophthalmoscope3.5 V Coaxial Ophthalmoscope: Accessories04900-U 3.5 V Halogen Lamp for 11720 Ophthalmoscopes04900-LEDLED Upgrade KitApertures for: 3.5 V Coaxial Ophthalmoscope, 3.5 V AutoStep ® Coaxial Ophthalmoscopeand Prestige Coaxial-Plus Ophthalmoscope (models 11720, 11730 and 11735)Micro-Spot Apertureallows quick entry into small, undiluted pupils.Small Apertureprovides excellent view of fundus throughan undilated pupil.Large Aperturestandard aperture for a dilated pupil andgeneral examination of the eye.Cobalt Filterused with fluorescein dye to view small lesions,abrasions and foreign objects on the cornea.Slitused to determine levels of lesions and tumors.Red-Free Filterexcludes red rays from examination field for easyidentification of veins, arteries and nerve fibers.Fixation Aperturehas graduated crosshairs for measuringeccentric fixation or locating lesions.LensesFiltersOptical System28 Lenses-25 to +40 DioptersCross-linear PolarizingRed-freeCobalt BlueCoaxial Optics15