The first thing to look at is what causes swollen eyes, some of which are pathological, such as poor kidney function or other factors that cause eye edema, which cannot be solved by double eyelid cutting, and need to be treated symptomatically or by finding the real cause. If the swollen eyes are caused by fat or skin bloating and accumulation, a good result can be achieved by removing the excess skin fat or tightening the sagging orbital septum through double eyelid cutting. So whether swollen eyeballs can be solved by double eyelid surgery depends on what causes the swollen eyeballs, whether it is pathological, congenital or due to aging caused by skin or fat sagging orbital septum, depending on the specific situation.