First, make sure you are getting involved with a legitimate quality KM school,...
www.KravMagaAlliance.com/affiliates
www.KravMagaWorldwide.com
Both of these KM organizations have locations in Canada, although I can't give you more specific info. because I don't know your location.
Your instructor shouldn't have a problem with you wearing them. One thing to consider, if you normally wear your glasses, and only wear the goggles in KM class, what will the resulting limitations be when your glasses are knocked of in a fight?
Depending on the extent of your need to wear glasses, ie; just for reading or all the time, if you get into a fight you can't rely on your glasses staying in place. Start your training wearing the goggles and then as you get more proficient try doing some classes without them. Let your instructor know so he/she can pair you with a more experienced student to help you work the classes.
Yes, absolutely.
I use goggles for sparring in karate. I haven't found it necessary to use them for the other parts of class and just wear my usual glasses (although they do occasionally get bumped around).
Yes, you can. I had a couple of classmates in KM who wore sports goggle.
I recently bought this system http://www.downloadita.it/r/rd.asp?gid=4... It teaches how to protect yourself and your family in case of violent situations or unexpected attacks from thiefs. Sometimes having a gun is just not enough.
they will be helpful for Riki with his water judo
I want to take a self defence course(krav Maga) but I wear Glasses,would I be able to wear prescription sport goggles instead