Digital vision screener BVS200

♦ Adopts a non-contact, non-invasive and non-destructive optical measurement method, featuring convenient operation and fast measurement speed. ♦ Equipped with binocular mode and monocular mode, which can be switched arbitrarily. ♦ Capable of measuring multiple parameters: spherical power, cylin- drical power, cylinder axis, spherical equivalent, pupil size and in- terpupillary distance (IPD). ♦ The front and rear position of the device can be adjusted slowly according to the on-screen prompts "Too Close" or "Too Far”. ♦ Can emit musical sounds to attract the subject’s attention, and guide the subject to fixate through the flashing of the fixation lamp.