I prefer to wear glasses over contact lenses.
Glasses are typically worn to correct vision, an example would be reading glasses or glasse for nearsightedness. Though for some people contact lenses look better and are less annoying.
That is true. I like glasses better as they are cheaper and I think easier to clean for me and put on.
Yes glasses are much more convenient for some people understandable. Some types of glasses are used to protect against visible or nearly visible light or radiation?
Yes like sunglasses! They protect against UV radiation I think. And also look cool. Strange I have to wear contacts to wear sunglasses tho. 
I apologize for the awkward question mark at the end of the last sentence. And yes some sunglasses are for style and some protect against UV (ultraviolet) electromagnetic radiation. UV radiation constitutes roughly 10% of total light outputted by the sun. So it is very present in the sunlight that hits the earth.
Wow. You are pretty knowledable about that. I typically do not wear sunglasses when I go outside though, since I just have regular glasses.
I totally understand i dont either unless the sun is really bugging me. But sunglasses are a pretty cool thing, in the early 1900's they were called sun cheaters, cheaters was actually slang for glasses in America. Pretty weird!
Hmmm...I didn't know that they were called that. I guess our current slang for them would be "shades." I wonder why they called them cheaters tho?
Yes shades are definitely a current slang term. I am not sure why cheaters was the designated term, perhaps they cheated the amount of light entering your eye? Nevertheless another type of glasses important to society are safety glasses which provide eye protection from flying debris or objects for technicians and construction workers. Some may have side eye protection as well as protection in the lenses.