[Jewelry making - Article 00065] - Re: [Orchid] Jewelry Making and Vision Problems

[Charles Friedman]

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    Another Dental perspective: 

    The current trend in dentistry is to have the dental students learn
    to work using magnifying loops. 

    There are various models and types available ranging from about 2x
    to 4.3x in magnifying power. They also range from headgear with swing
    down mini binocular devices (with xenon lites!) to safety glasses
    with portholes filled with magnifying lenses to clip ons. 

    I have used my wife's magnifiers, as well as the loops of
    yester-year: an aluminum headband with a post on a swivel with a pair
    of lenses attached (2x). This last one is the one I am most
    comfortable with, but I have also used the Zeiss 4.3x on the
    headgear. 

    The prices range from about 25 (optivisor) to 1500 (Zeiss). There is
    a learning curve to all of these, but they do make a difference. Now
    the last idea may be the most expensive, but the most interesting:
    using a digital camera or video camera displaying on a flat screen. I
    have seen this kind of system in use in dental office: a microscope
    hooked up to stereo cameras and projected on a 72 x 72 inch screen at
    a final magnification of 132x! The dentist looks thru 3-D glasses and
    directly at the screen. It is amazing what you can see. The point is
    that it could take a little experimentation and some getting used to
    looking at a monitor, but I think that this has potential. 

Charles Friedman DDS
USC Dental School
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