How to use the OptiVisor
The OptiVisor should be worn squarely on the head with the center of the lens plate at the bridge of the nose. By adjusting the knob at the rear of the unit, enough tension can be applied to hold the headband in place. The adjustable pivots on either side of the visor should be tightened with enough tension to hold the lens in front of the eyes as well as up out of the path of vision when not in use.
The greater the magnification, the shorter the focal length and the smaller the field of view. Therefore, the least power necessary to meet your magnifying requirements should be selected. All of the above listed lens plates are interchangeable on the OptiVisor. To change the lens plate, push the fasteners out from the back, inside visor and snap in the replacement lens plate.
How to care for the OptiVisor
OptiVisor is not a safety device and should be worn over safety glasses when safety is a concern. The OptiVisor is designed to be worn over prescription eyeglasses, and not to replace them.
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