Without doubt, fever causes sore eyes indeed. The one that has fever means she/he got cold. Cold always because of bacteria and virtues attack your breath system, and then you begin to cough, feel sore throat, eye pain. Sore eyes are most commonly due to infection and injury. Tired and fatigue also cause eye problems. Commonly cold along with sore eyes, especially the one has high fever. When you have such condition, you need to see a doctor and take notes from him/her. Cold is easy to be healed but sore eyes not. You can use a warm cloth compress on eyes for 10minutes, and then drop some basic drops to kill bacteria and reduce redness. Also, you can drink some tea and water with honey. Massage some aromatherapy oils to help with pain and swollen. Actually, the best way to solute your condition is go to see a doctor and get a prescription and stay fit at home. Best wishes!