My father retired and gave me his old otoscope powered by an
incandescent bulb. You can't see much at all.
Twenty five years ago, Welch-Allyn came out with the halogen otoscope.
There was a rapid increase in the diagnosis of otitis media. While there
are a lot of reasons for the increase, don't discount the the improved
Now I have the MacroView otoscope, and I have suddenly started seeing
less otitis media. I think it's because I can see even better. The
"possible otitis" is now clearly "not otitis".
(not an advertisement.)