TheS4OPTIK Trial Clip is a useful and effective monocular trial frame which may be used with almost all types of eyeglass frames. They incorporate three cells for 38mm trial lenses and accessory lenses. These trial clips are very helpful in low vision testing.
Hand Held Cross Cylinder Available in ±0.25, ±0.50, ±0.75, ±1.00 and ±2.00 powers.
