The term 'Cause of Temporary Blindness' can be summarized by two crossword solutions: SNOW (4 letters) and TEARGAS (7 letters). SNOW blindness is a condition caused by exposure to bright sunlight reflecting off of SNOW, ice, or water. It is a form of photokeratitis, which is an inflammation of the cornea caused by ultraviolet radiation. Tear gas is a chemical agent used to disperse crowds or control riots. It is composed of various chemicals that cause irritation to the eyes, nose, throat, and lungs, leading to temporary blindness.