I was prescribed -5.0 & -0.75 ( sp & cy respectively) i used some glasses made with same power for over a year. I still CAN see sharp with those glasses. Bought new glasses, gave 20 days adjustment period. Do see blurry at distance, got glasses checked, optician made 0.5 cylindrical power instead of 0.75 and axis was also mismatched, CAN this be the reason for not able to see clearly??