I have a question about phenomena of glare. I had read about an article saying that the glare is caused by the effect of fraunhoffer diffraction; However from my observation is that, even in the near field diffraction, it still occurs the same effect as glare, the only difference is that the source of illumination is not from sun but artificial light. And i had referred to some wiki citing that glare is the effect of over-illuminance, so is that glare is valid for all diffraction patterns rather than just far-field diffraction? My conclusion is that glare effects is existed everywhere, the only difference is that the illumination-ratio of light source in contrast to environmental illuminance rate. Your help is much appreciated, Thanks in advance and have a nice day. God Bless. Regards, Daniel.