Well, generally speaking, you should know that night blindness is a condition, which can make it difficult for you to see in the low light, for the human eye got a very sophisticated system which can function from very dark to very bright light. But on the other hand, when you have got night blindness, your eyes will fail to adapt to the darkness. For you situation, I will suggest you use wood apple leaves. Remember that you can soak the leaves of wood apple in water overnight and wash your eyes with that water in the morning. Also, you can eat more bilberry, which contains high levels of natural antioxidant compound. By eating it, bilberry can improve eye adaptation to darkness for people with poor vision. Anyway, you can just have a try.