My 80 year old mom is going through Chemo for Bladder Cancer. Sh...

My 80 year old mom is going through Chemo for Bladder Cancer. She is also diabetic. Bacteria was found in her urine so the doctor gave her 4 tablets of Levaquin. Saturday night of Labor day weekend mom took the first pill. Sunday she woke up almost BLIND! She panicked and, thinking it was her diabetes causing the problem, took her blood sugar numbers. (She was so scared that she can't recall what the numbers were, just that they were 250+). She started taking her fast acting insulin. She couldn't get the blood sugar numbers to come down after numerous injections. She called me so confused and not knowing what to do. Thank God I wasn't gone that weekend. I rushed 18 miles into town. I calmed her down. We just kept watching the numbers and she kept taking her injections. About 6 hours later the numbers were down to normal for her. We narrowed the cause down to either the Levaquin or the infusion of platletts she had on Friday. We called the pharmacist and he said that Levaquin could cause blurriness of vision. She didn't take any more Levaquin. It had been 10 days since she took that one pill and her eye sight is still messed up. When she tries to read the newspaper the letters jump around. She has a hard time reading the dosage numbers on her syringes now. She is so scared that her eyes won't get better and she will have to be dependent on someone.