During use, moving images and certain light sources may cause stomach upset, dizziness, and loss of balance. Discontinue use of XR glasses and consult a physician if you experience seizures, unconsciousness, convulsions, unconscious body movements, confusion, nausea, dizziness, drowsiness, fatigue, eye pain or discomfort, eye fatigue, eye twitching, vision acuity, or symptoms similar to hyperhidrosis, salivation, decreased numbness in the hands and eyes, or nausea. Continued use may harm your health.