That isn't used very often anymore, as it may make dry eyes worse!

"Pilocarpine is seldom used today as an ocular hypotensive agent because it irritates the ocular surface and induces uveitis, and more effective medications are readily available."
https://www.sciencedirect.com/topics/pharmacology-toxicology-and-pharmaceutical-science/pilocarpine#:~:text=Pilocarpine%20is%20seldom%20used%20today,effective%20medications%20are%20readily%20available.