Phoroptor Breath Shield Tonopen Batteries Optical box

Optical box

Long-life Battery

Setting block for calibration

Median Field Diagnosis and Treatment

For use with Marco Projection Perimeter

Phoroptor Breath Shield Tonopen Batteries Optical boxThis breath shield was designed to easily slip onto most AO and Marco style phoropters, creating an additional breath barrier between doctor and patient, while not interfering with the use of the phoropter, or touching the nose of the patient, even when the PD is adjusted. This patent pending design features special contours that cover the gap between the two sides of the phoropter without covering the oculars or interfering with the use of cylinder