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Do not base your order on the picture presented.
The Lichtenstein Fixation Box is used to measure fusion at 20 ft (6 m), as well as to maintain fixation for your younger patients. The box contains a Worth 4-Dot examination, a white fixation light for adults and older children, as well as a fixation light that changes colors for strabismus measurements or refraction.
Worth 4-Dot LED lights are 1.9 cm in diameter and 10.48 cm from each other from center.
LED's provide increased bulb life. Universal power supply. 7.25" H x 6" W x 1.5" D (18.4 cm H x 15.3 cm W x 3.8 cm D). CE and CSA Listed.
Anaglyph Red/Green glasses are sold separately.