Keeping the monitor clean will greatly reduce eye strain while using the computer. There are many products available for keeping the screen clean. It is advisable to clean the monitor with the power off as most have a large static charge built up on the glass. The charge will rub off on you and often cause a shock. See below for more information on controlling static.
Many computer users use anti-glare screens on their monitors.
Most of these are made of glass or plastic and are reasonably durable. It is important to note that the anti-reflective coatings may be damaged by some cleaners, or too much enthusiasm with the cloth. It is advisable to consult the instructions that accompanied the filter to see what materials are incompatible. The cloth screen models are fairly fragile and should be treated with great care. Static discharge prevention.