im thinking about getting some glasses, aka spectacles, they are devices consisting of glass or hard plastic lenses mounted in a frame that holds them in front of a persons eyes
Do you know a lot about glasses? I've never had to wear them. I'd be interested in hearing about your research on them in anticipating of having to wear them.
well they are typically used for vision correction, such as with reading glasses and glasses used for nearsightedness 
Right, that much is obvious. I could understand that. Is there something more specific I wouldn't have known?
well there are safety glasses that provide eye protection against flying debris for construction workers
Yeah.. I'm with you so far. Okay, what about fun facts? Something obscure? Something funny or cool about glasses?
well typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions.. thats about as interesting as its going to get
I see... What else can you tell me? What else did you really want to know when looking into them?
well sunglasses allow better vision in bright daylight, and may protect ones eyes against damage from high levels of UV light