Hi!
I recently obtained my first manual keratometer, a S4OPTIK Keratometer. My clinic exclusively uses auto keratometers, and none of the other opticians or optometrists can recall how to use a manual.
The axis drum on the keratometer won't turn, and looks like it isn't designed to turn. What am I missing?
Thank you- I'm sure it's an obvious fix that I'm entirely missing.
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