In addition to his glasses worn for penalisation, the patient receives spectacles with a red and green glass. Asked to fix the lamp of the examinator, the patient sees the light either red or green, according to which eye is fixing on the light.
In addition to his glasses worn for penalisation, the patient receives spectacles with a red and green glass. Asked to fix the lamp of the examinator, the patient sees the light either red or green, according to which eye is fixing on the light.