Patient: description of condition (onset time, main symptoms, hospitalization, etc.): Vision is now 0.01, almost blind . It has been one or two decades. He has been treated in your hospital before, but there is no good treatment. Now my father plays poker every day to improve his eyesight. Or is it more harmful to the eyes? Ophthalmologist of Peking Union Medical College Hospital: At present, there is no effective method for retinitis pigmentosa at home and abroad, but the United States is doing research in this area, and I believe there will be a more effective method in the near future. Strengthening your eyes will not be too harmful, but you should pay attention to not using your eyes too much and avoid eye strain.