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.

一种防眼的理疗器，它有作为物的凸透、筒、目，还有头套和透组，它用于人们在距离上用眼戴在眼上，可以使被物的像清楚、放大和变远。