USA equal drug to Vitreolent eye drop potassium iodide 3mg/ml sodium iodide 3mg/ml? It is used for serious eye problems which started as catactrat was not treated on time until was too late. The medicine work very well for my mother. I just want an equal or similar eye drop. She is not here in USA She uses the medicine for years., but now is not available in the store. Can you please help to find the Vitrelent or how tell me how to get it ?