Bernell After Image Generator

The long-lasting after-image produced by this hand-held unit makes it an ideal tool for assessing central fixation. By flashing an intense image onto the retina, the device provides immediate biofeedback information for the patient and doctor or therapist.

Powered by 2 AA batteries and only requiring minimal time to recharge the flash, this easy-to-use unit is an efficient solution for VT practices. To operate the device, simply have the patient close one eye and look directly at the center of the device with the open eye, then flash the device. This action should cause an after-image to project through to the eye that was originally closed.

Includes:
• Handheld After Image Generator
• After Image Enhancer Fan

If assessing the anomalous retinal correspondence (ARC) between the two eyes, hold the device in a vertical position and flash it onto one eye with the other closed, then flash a horizontal image onto the other eye with the opposite eye closed. The patient can then receive visual feedback for the practitioner to assess the manner by which they view the perceived cross image.

Device Color: Black
Power: 2 AA Batteries (Not Included)