if use linked products, all are the same;
what i need is just like www.cheapglasses123.com
They also all look the same - so more explanation on what you are wanting is in order
different category display different product urls: cheap-eyeglasses-usa, and cheap-eyeglasses-usa?cPath=2&, although canonical is used. I think does not look good.
That is only the url and you are not selling it - Focus on your page contents

Also a link to your site will assist in seeing what you have currently