- Details
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11720 | Coaxial Ophthalmoscope- Halogen light for true tissue colour and consistent, long-lasting performance.
- The coaxial optics produce a shadow-free spotlight, easier entry into undilated pupils and a larger field of view compared to standard ophthalmoscopes.
- 6 apertures:
Micro - allows quick entry into small, undilated pupils.
Small - provides excellent view of fundus through an undilated pupil.
Large - general examination of the eye through dilated pupil.
Fixation - graduated cross-hairs for measuring eccentric fixation or locating lesions.
Slit - used to determine levels of lesions and tumors.
Cobalt blue - used with flourescein dye to view small lesions, abrasions and foreign objects on the cornea.
- 2 filters can be used in conjunction with any of the above apertures:
Red-Free filter - filters out red light for easy identification of veins, arteries and nerve fibers.
Polarising filter - virtually eliminates corneal reflection.
- 28 focusing lenses with a range of -25 to +40 diopters, adjustable via easy-to-reach maywheel.
- Rubber brow-rest prevents scratching of eyeglasses.
- Variable illumination strength via the handle rheostat dial.

Rheostat Control
Vary the power of illumination with the smooth turn of a dial.
Aperture Selection Disc
Switch easily between 6 apertures via a disc on the head.
Six Apertures
A wide range of practical apertures to select from.
LENS Selection Disc
Focus on the fundus, cornea, iris and other ocular structures.
Two Filters
Red-free or polarising filter can be used in tandem with any aperture.
More information: Using Ophthalmoscopes in Eye Examinations - Additional Information
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Additional Information
SKU 11772-BI Diagnostic Features Red Free Filter Master Colour No Warranty 10 Years User Groups No Manufacturer Welch Allyn Engraving Chars 30 Voltage 3.5v Power Source C-Cell Battery Charger Included No Illumination Halogen Spare Bulb Supplied No Otoscope Type No Total No. of Lenses 20+ Total No. of Apertures 382 Ophthalmoscope Type Coaxial Lead Time No - Reviews
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