Eyeglass Maintenance
You can make your eyeglass last forever by proper handling it. By wearing and taking your eyeglasses off with both hands can add to its life. When we wear it and take it off using your one hand you will stress the nose bridge and temple joints and later these will loosen and might slides off the glass.
For cleaning the glasses you can use a soft cotton towel and just plain water. If tougher stains or dirts in your eyeglass its better to buy a lens cleaner and lens wipes. And warning! Never use paper even it has smooth surface because paper fiber might scratch the lens.