Demodex and acanthomoeba are two different things. I'll go over them briefly.
Demodex is a mite that lives in our hair follicles and oil glands. They are found in normal people. In older patients and patients with weakened immune systems, the demodex can overgrow and cause sleeves to be apparent around the base of eyelashes. These mites are microscopic and normally do not cause a problem.
Acanthomoeba on the other hand is a protozoa that is found in untreated water sources. This organism is found in a rare corneal infection, commonly seen in freshwater and the soil. We typically see this type of infection in contact lens
users who have used tap water to clean their lenses
or have gone swimming in them. It is an extremely difficult infection to treat.
From your description, you seem to have demodex and not acanthamoeba. It is difficult to see the mite without the use of the microscrope, but easier to see the effects of them such as those cystic things you are pulling.
There are treatment of the demodex available, but first you have to confirm that is what it is. I would recommend consultation with an ophthalmologist or dermatologist so that can confirm it and discuss treatment options then.