What is the reason for the blurred eyes at night?

One night on the performance of the eyes to see things blurred, to consider is caused by night blindness, night blindness is common symptoms of ophthalmology, can be caused by many reasons, such as retinitis pigmentosa, vitamin a deficiency, advanced glaucoma, etc. Among them, vitamin a deficiency caused by night blindness, and patients with long-term partial eclipse, malnutrition, etc., after oral vitamin a capsule treatment can be cured. The late glaucoma caused by blurred vision and night blindness, need surgery to prevent and delay the disease caused by retinitis pigmentosa as much as possible. At this stage there is no method of treatment, usually prevent strong light stimulation, for delaying the progress of the disease has some help.