As for the tiered eyes, it means the eyes which suffered from much more labor and get fatigue. As we use computer everyday in our work, it's inevitable. You know long time eye use will cause vision problems such as myopia, glaucoma, cataract etc. Some eyes diseases are caused by the tired eyes. If you feel sore, photophoby, dry and blur with the eyes after long time hard working, it must be the symptom of tired eyes. Please relax your eyes at regular time. Make sure relax 10-15min after every 2 hours computer work or book reading. Alternate work with rest, this is the best way to enjoy your work and life while keep balance of them.