A lot of things can cause eye strain at the computer, but dryness is a big factor. Maintain a good humidity level to avoid exacerbating your eye strain.
Picture: Jeffrey Beall/Flickr
There are a number of ways to help reduce eye strain, including software tools such as F.lux. The folks at Apartment Therapy suggest that adding a humidifier or a large plant to a dry room can also keep your eyes from drying out.
Dry rooms can dry out eyes, exacerbating whatever effect the monitor is having. Add a small humidifier to dry rooms, or if a room is only a little bit dry, get a large plant. Plants naturally add moisture to the air.
If you don't want to deal with the hassle of a humidifier, or you don't have the green thumb for a plant, you can also try putting water in some glass vases and setting them next to a sunny window.