Treatment of corneal pannus with leech

Place the live leeches in clean water for 2 to 3 days, remove the dirt on the body and spit out the scales in the abdomen, and put it in pure honey after weighing it. The ratio of honey to leeches is 1:2.5 or 1:3. The leeches die about 1 hour after contacting the honey, and a turbid liquid appears, which floats and then sinks. It takes 6 to 8 hours in total to obtain a brown transparent liquid after filtration. Place it at 0°C for 3 to 5 days and it can be used as a topical eyedrop, 3 to 4 times a day, 1 to 2 drops each time. Or made into injection, under 1% procaine anesthesia for subconjunctival injection, first use a small amount, then gradually increase, usually 0.3 ~ 0.5 ml, inject once every 2 days, after the injection, apply antibiotic ophthalmology Half a day. A total of 71 cases of corneal scar cloud pannus and adhesion corneal pannus were treated, 26 cases were markedly effective (the scar was thinned and reduced, and the vision improved), 39 cases were improved (the scar was thinned and reduced, and the vision was slightly improved), and 6 cases were ineffective; In 124 cases of cataracts, 65 cases were markedly effective (visual acuity increased by more than 5 times), 51 cases were improved (visual acuity improved by more than 3 times), and 8 cases were ineffective; 37 cases were vitreous opacity, 26 cases were markedly effective (visual acuity improved by more than 5 times), and improved (visual acuity) Increased by more than 3 times) in 9 cases and invalid in 2 cases. According to observations, hirudin is safe to use with few side effects. There were more than 5,000 subconjunctival injections, with only 2 accidents: 1 case of pre-existing glaucoma, which stimulated increased intraocular pressure after injection; 1 case of hypertensive patient (blood pressure 210/110 mmHg), whose vision dropped suddenly after injection. External eye drops have a good effect on simple corneal pannus, and the general course of treatment takes about 2 months or more; while it has a poor effect on adhesive corneal pannus.