The Little Mermaid Ariel swam under water and had no vision problems, but worth it to move to the land and to get the legs, there was a burning sensation in the eyes and they became less visible. Take a fabulous patient and conduct a survey to establish the level of incidence and seriousness of the disease. Perhaps there is no reason to worry, but it 's worth making sure. Proceed with the mouse and the keyboard to use the necessary tools.