See question above. Also curious about S’chita (squeezing prohibited during Shabbos). Is it an issue for squeeze bottles (or eye drop dispensers) on Shabbos? How about if some of the drops fell on a tissue next to the eye, can I squeeze it back into my eye? Is it better, if someone else places the drops on the eyes of the patient?

Poskim permit squeezing liquids from a plastic bottle since they are not absorbed by the plastic material. Horav Shlomo Miller’s Shlit’a opinion is that if if some of the drops fell on a tissue next to the eye, they cannot be squeezed back to the eye, since the tissue is absorbent.