Dream David is harmless to the cornea, so I wear it. The effect is immediate. You can keep your strength from deepening and wear it for 8- 10 hours at night. The vision can reach 1.0 on the second day. O(∩_∩)O~ Sometimes you can see 1.2.

Doctors are very patient, professional and enthusiastic.

As for the price, it depends on the degree, but you can't wear it if it exceeds 600 degrees.

But after wearing it, it will produce astigmatism of about 50 degrees, and some people will not feel it.

General large regular hospitals have set up this dream in ophthalmology, David. You can have a look at that website.

As for McGregor, it seems to be harmful to the eyes. . .