I found this at the Samsung site:
"The proper way to clean the 3D glasses is one lens at-a-time. It is not advisable to clean them in the same way that you would clean regular glasses (one finger on each lens), as it could damage the glasses. Do not clean both sides (front and back) at the same time as this will damage the glasses.
3D glasses actually have 2 screens in each lens, and putting pressure on both sides at the same time will squeeze the 2 lenses together, causing them to come in contact with each other and distort 3D viewing. When cleaning, use a clean, microfiber cloth and clean one side first, then then other. Do not clean both sides of the lens together.
Do not use any chemicals containing alcohol, solvents, or surfactant. Do not use any chemicals such as wax, benzene, thinner, mosquito repellant, lubricant, or cleaners. These may result in discoloration or cracks on the glasses surface and cause or cause the indication labels to peel off. Do not spray any cleaning liquid directly onto the glasses."
Obviously you have to be very careful when you attempt to clean these glasses. Are they really that fragile?