Washing hands first is the most important thing. Clean with special cleaning solution first, and then clean with pure water. This process is best washed several times until the lens is slightly astringent and there is no satiny feeling of cleaning solution. Pick it up and see, there is nothing on the lens except water droplets. Be sure to drop a tear on the lens before wearing it.
When picking, you should first wet your eyes with a tear and pick it with a suction stick. The sucker must be clean. Put it in a box and pour the nursing solution, not too little, but not all of it.
That's about it. I think just pay attention to these things and don't rub your eyes and use them too much.
I also have trachoma (just a little inflammation). Chloramphenicol eye drops have been dropped for two weeks. Let me check again. But chloramphenicol seems to be bad for your health.