In movie theaters, 3D glasses are frequently shared among viewers, allowing bacteria and microbes to accumulate on the surfaces. Skipping a thorough clean before use can lead to conjunctivitis or skin infections. Opt for the antibacterial wipes often provided—or bring your own if they're unavailable.
Prolonged wear may trigger dizziness, nausea, headaches, or fatigue. Martin Banks, professor of optometry at UC Berkeley, notes these common effects. Samsung, a top 3D screen maker, warns on its Australian site of potential dizziness, nausea, or headaches. Those with seizure or epilepsy history should consult a doctor beforehand.
3D or standard? Enjoy moderately. At the first sign of discomfort, follow Samsung's guidance: remove the glasses and rest your eyes for at least 30 minutes.