A physiotherapeutic apparatus for preventing and treating near sighted eye has a convex lens used as objective lens, lens cone, eyepiece, headgear and lens set.

一种防治视眼的理，有作为物的凸透、筒、目，还有头套和透组，用于人距离上长时间用眼时戴眼上，可以使被视物的像清楚、放大和变远。