And there are atropine eye drops low doses of a substance that temporarily paralyzes the eyes' focusing muscles which seems to reduce the development of myopia.
Today, doctors still use atropine for its muscle relaxing and anesthetic effects, mainly to dilate your pupils before eye exams. They just use it in very small, controlled doses.
Putting lots of atropine in your eyes is a pretty horrible idea, because constantly dilated eyes can expose your retinas to too much light, damaging the sensory tissues and affecting your vision.