problem with ( canon 16-35mm 2.8 II ) Blur Edges

[ahmedbasha]

Hello everybody
i have problem in my lens ( canon 16-35mm 2.8 II ) the edge be a blur and not clear in left and right side of frame it was small and now stretched to center .

can i get solve to my problem ? 

Sample  : 

Best Wishes
Ahmed Basha

[ebiggs1]

"...left side especially is blurred ..." "... In the center, the lights are more point-like."

A typical condition of that lens.  But as pointed out above, the poor sample does not lead to a discernible conclusion. Plus it is exacerbated by questionable settings by the OP.