Chronic - persistent low level discharge from nose, weakness, poor head and limb retraction. Probably the most common disease found in tortoises. The tortoise should be treated by a competent veterinarian immediately. Mild cases respond to Neomycin or Chloramphenicol eye ointment. Where you see severely swollen eyelids there is usually a primary bacterial infection in which case a course of antibiotics will be essential.
Some eye problems are simply an indication of vitamn A deficiency.
Supply vitamin A and use a mild eye ointment, if the condition does not respond fairly quickly get veterinary help. Severe worm burdens can also cause gut impaction. Distension of the gut affects lung capacity and inhibits respiration leading to rapid death. Gut impaction should be suspected if the animal does not pass droppings, is lethargic and having difficulty breathing. Soaking the tortoise in a bath of tepid water will encourage defecation.