1) Is flashlight close to only one eye for long will cause visual impairment in one eye? And in future can it cause lazy eye. 2) I have done that with my" right" eye. Few days ago I used to keep my smartphone camera very close to my eye for long time more than 10 mins to check I have squint or not. Actually i'm in physiological problem. 3) Then I check my both eyes from retina surgeon. According to him my both retinas are normal there is no damage. 4) after that I closed doing such is stupid things. But now when I close my left eye and see with right eye only I see things little blurry not to much but its noticeable. When I see things at far distance with my right eye only it is more blurry than near images. Can this lead to lazy eye in future? How can I treat it?