The eyes are always swollen, there may be the following causes, 1, eye fatigue, when eye fatigue, there will be eye soreness and discomfort, when the measured IOP is normal, you should give eye drops to relieve fatigue, such as heptafolium digitalis bisaccharide drops, 3 times a day, 1 drop, or eye aminopeptide drops, 3 times a day, 1 drop, while avoiding factors that cause eye fatigue. 2, glaucoma In glaucoma, the long-term increase in intraocular pressure can cause eye soreness and swelling, when the measured intraocular pressure is higher than normal, especially in patients with a family history of glaucoma, they should be more alert to the occurrence of glaucoma, if the measured intraocular pressure is higher than normal, treatment to lower intraocular pressure should be given, such as brinzolamide eye drops, 3 times a day, one drop each time. Therefore, if you have sore eyes, you should visit a regular eye care provider in time to determine the cause of your sore eyes and treat them accordingly so as not to delay your condition.