Frequently Asked Questions
What is the difference between Microscopes, Loupes and the Vorotek O Scope?
Microscopes provide the user with binocular converged optical pathways (three dimensional vision) while both hands are free to perform clinical procedures.
Loupes systems require convergent vision to overlap two images at a set distance. As a result, users of traditional Loupes Systems typically end up using one dominant eye when working in an ear canal.
Vorotek O Scope
As with the microscope, the Vorotek O Scope provides binocular converged optical pathways for the user. This allows the user to use both eyes throughout procedures and maintain a three dimensional image of the ear canal.
To learn more about Vorotek O Scope view our video.
Magnification and Illumination FAQ
Why use magnification?
Recommended by most schools of dentistry. Most dental work is so precise and small that without visual assistance the best results cannot be achieved.
How much magnification?
The lowest that allows optimal surgery (usability). Most more powerful loupes (eg x 4) are not user friendly.
What is the “sweet spot” for magnification?
The most commonly used magnification is x 2.5. Approx 80% of loupes used are x 2.5.
What if extra magnification is needed e.g. for root canal work?
Usually magnification in the 5 to 10 times range is needed. This powerful magnification is only user friendly when fixed and not head worn, thus a microscope is preferred.
Does loupe quality matter?
Very much but it is hard to measure and define. Quality is a balance between clarity, field of view, depth of field and magnification.
How can loupe quality be compared?
By looking at miniature writing (eg on a bank note) just looking through one loupe with one eye and then comparing the alternative loupes.
What working distance is best?
The optimal working distance is up to the individual. Working distances of 370mm, 420mm and 470mm are common options. Note that longer working distance can detract from optical performance.
Which angle of declination is best?
Research has found that a 30deg angle of declination provides the best balance between ergonomics and eye strain.
Does head worn illumination help?
Definitely. The head shadow effect prevents overhead lights from being optimal. Oral surgeons, Plastic surgeons, and ENT surgeons regularly use head worn illumination.
Is the integration of illumination and optics important?
This makes a major difference to ease of use. “Add on” or afterthought illumination is often hard to set up and tends to move out of optimal alignment.