(Concern) When children's eyesight is poor, I'm curious about Dream Lenses.

These days, children's eyesight is deteriorating a lot. When they go to elementary school, they have vision tests, and the eyesight that was okay in first grade suddenly dropped significantly by second grade. I heard about dream lenses before, so I inquired, but the ophthalmologist I visited did not recommend dream lenses and said that eyesight could be improved with eye drops. I wanted to look into it more, so I asked other moms and the hospital, but everyone had different opinions. Some said it’s unproven, ineffective, or could cause other eye problems... I can't make a hasty decision about my child's eyes, so I am just waiting. Of course, I got glasses and am using them. Is giving my child dream lenses ineffective and just causing them suffering? Are the eye drops dangerous? I am really curious.