I am a female aged 42 years, height 5 3 , weight 85kgs. I was operated for RK surgery for myopic correction in 1992. Now, the side effect of this surgery is diagnosed as cataract and retina detachment and was operated for cataract on 25.05.2011. But, the retina was not operated as vision area was safe. But, due to infection of cough and cold, today morning nothing could be seen due to internal hammer-age. The opthalmologist has prescribed Tablet Wyselone 40mg. I would like to know why this tablet is used and will I be able to get back my vision.