Feeding light instrument belongs to the second class of medical devices, must go to the authorized, qualified entity store, it is specifically for the axial myopia children control the rapid growth of

Feeding light instrument belongs to the second class of medical devices, must go to the authorized, qualified entity store, it is specifically for the axial myopia children control the rapid growth of the eye axis, my child is only 10 years old, the eye axis has been 24mm, do feed the light instrument for more than three months, check the eye axis did not change at all, it is very gratifying, it is just so easy to give the child to buy a, twice a day, it's very convenient;;;;;