The price of double eyelid surgery depends on the condition of your eyes, of course, the price is high certainly better results, generally tailored to your double eyelid surgery will have more than one project, like the eye spacing is too large you need to open the corner of the eye, like you said the swollen eyes need to be cut off the excess fat under the eyes, the price will be increased accordingly. The current price for double eyelid surgery is around $3000-6000, (price for reference only)