Product contains a class IIIA visible laser with a Laser Output less than 1.7mW peak Powered by a USB-C rechargeable 1000 MAh 3.7V battery, providing up to 1 and a half hours of battery life ...
The spot-light retinoscope projects a circular light beam. The slit-light retinoscope with a light beam in the form of a line, simplifies recognition and the determination of astigmatic refractive ...
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