How are you housing the tortoise?
What are your four temperatures? Warm side, cool side, basking area, and overnight low?
What types of bulbs? UV? What type of UV bulb?
What do you feed the tortoise?
How long have you had it?
What type of substrate is it on?
Swollen eyelids can be an indication of vitamin A deficiency. But based on the photo your tortoise appears to may also have swelling in at the base of the limbs and neck. It's a bit hard to say for sure from the photo. If this is the case, along with diminished eating and decreased activity, he could have a bacterial infection. Only a veterinarian can tell you that for certain with testing. If that is the case they will likely administer antibiotics.