Patient: Description of condition (onset, main symptoms, hospital visited, etc.): Patient, male, 66 years old, in good health. A year ago, his left eye was always blurred, half a month ago the blurring worsened, he was seen at the local hospital, his vision was 4.6 in the left eye and 4.7 in the right eye After examination the doctor said it was a cloudy lens He was given injections on both sides of the eye for 15 days but no improvement! Still blurred! I want to consult what is the best treatment, and treatment drugs? Doctor: Hello! If the cataract is diagnosed, any medication is ineffective. Surgery is the most direct and effective method. We suggest detailed examination to confirm the condition before making a decision. Patient: You are curious doctor: I was examined at the local hospital and said that it was not a cataract, but a cloudy crystal, and the doctor said that the cloudy area was in the pupil! Doctor: Hello! A cataract is a clouding or loss of clarity of the crystal. If it is in the pupil, then surgery is necessary.