My mother is of 55 to 60 years old. One day she went for an eye checkup. She was given an ear drop. After she returned home she put it in her eye and after 1 to 2 minutes she started telling that she cannot hear anything. Is it possible that due to that eye drop she is not able to hear. The same day we took her to the ENT doctor he told that her left ear have lost 90% power and her right ear have lost 60% of power. Can this happen that a person can suddenly lose the power of his ear. The physician is also not telling any thing he had only given the medicine. Some tests were done in which her sugar & bp was high. But she was taking the medicines of sugar & bp from 10 years. So please help me to know what it is and tell me how to cure it? Please