Sugar test

Has anyone been sent for their sugar test early?? I have had some blurriness in my eyes this past week and went to my doctors because here in Ontario (Canada) you only get your eyes examined every 2 years unless there is a medical reason. I now get to go for an eye exam and do the sugar test!! Just wondering if I should be worried about diabetes or if my eyes could just be changing!!!! I have been wearing glasses for the past 22 years!!!