Before you decide to use eye drops, you need to make sure the cause of your swelling eyes. As I know that the eyes usually become sore because they're dry, strained, tired or just plain overused. For this causes, lubricating eye drops may provide relief for eye irritation from visual stresses such as crying, eye discharge related to allergies and swelling from inflammation and allergies. However, if your eyes are sore a lot, you should have an eye exam to see if your vision needs correcting for nearsightedness, farsightedness, astigmatism or presbyopia.