This unit comes with a set PD or in a model that allows variation in PD or can clip lights onto the patient frame.
(Warning: flicker lights have been found to induce attacks in persons with tendencies toward epilepsy. This device is only meant to be used when eyes are closed.)
(Warning: flicker lights have been found to induce attacks in persons with tendencies toward epilepsy. This device is only meant to be used when eyes are closed.)
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