Wear protective eye gear. Sunglasses are great when it comes to protecting your eyes from the sun, but when you're on the job and need to protect your eyes from sawdust, debris, or sand make sure you wear tougher eye gear than just a pare of goggles. Goggles are a must-have for anyone working in these kinds of environments.
Get healthy today. There are a lot of different aspects behind "getting healthy" and they all have a direct relation to the health of your eyes. Eating healthy will provide your eyes and the skin around your eyes with the vitamins they need. Exercising will increase blood flow and lower pressure around the eyes.
If you wear contact lenses, avoid wearing them while you sleep or for more than 19 hours. Unless you are wearing special lenses that are made for wearing overnight, your contact can deprive your eyes of oxygen and lead to extreme discomfort and possibly serious permanent damage to your sight.