Hello,
Thank you for your reply !
Years ago I had an accident and a piece of glass cut my left eye and I lost sight and after few operations including a cristalin implant I got my sight back but not 100%, Will be 100% if I wear glasses +6 dioptres; but because my right eye is perfect (thanks to God) I do not need to wear any glasses for correction.
I hope this could help.
Thank you !