LG DM2350D Owner's Manual page 94

Warning when using 3D glasses
❐
✎ Do not use the 3D glasses as a replacement for your own corrective glasses,
sunglasses, or protective goggles. Improper use of 3D glasses may cause eye
injuries.
✎ Do not store 3D glasses in extreme conditions. Exposure to excessively high
or low temperatures may deform the lenses. Do not use deformed glasses.
✎ Do not apply pressure to or subject 3D glasses to any impact. Subjecting 3D
glasses to rough handling may cause a defect.
✎ The lenses on 3D glasses (with polarizing film) are vulnerable to scratches.
Use only a clean and soft cloth for cleaning. Dirty cloth may scratch the
polarizing film.
✎ Scratching the lens surface of the 3D glasses with sharp objects or cleaning
with chemicals may distort 3D images.