請翻譯為英文!thanks!

1.To lead to night blindness the most common's factor is retinitis pigment and vitamin a deficiency. Today, we'll centralize to say that two factors!

2.night blindness' people must to pay attention that two points:
1.To avoid driver at night
2.If you must driver at night, please add more visibility of drive at night and keep the low beam's clean.
3. To avoid wear sungalsses, administer to increase visibility.

1, A common factor of night blindness if a deficiency in retinitis pigments and vitamin
Today, we are going to concentrate on the factors

2,ngith blindness patient must alert to the following points:
1,avoid driving at night
2if driving is a must, the clearacy during driving should be kept as high as possible by using a clean headlights
3,prevent using sunglasses which decrease clearacy of driving

1. The common causes for night blindness are retinitis pigment and vitamin a deficiency. We will focus to discuss these two common causes today.

2. Night blindness patients should pay attention as fellows:
1. Avoid driving at night
2. Increase the visibility of driving and keep the cleaniness of front lights, if driving at night is unavoidable.
3. Avoid wearing sungalsses in order to increase the visibility.