#57 well that's nice. Could you try to incorporate the € symbol instead of the E of Eco or instead of the C of Optic ? I don't know if that can look pretty, but it could be nice if we can have it a pretty way.
Also, could you try a version with the eyshape #21 but without the leaf? We like the eyeshape of €57 but several people told us it makes the logo too similar to the one of one of our supplier/competitor (see
http://www.essilor.com/)