<p>I am about to purchase a new pair of glasses and from several eyeglass companies I am hearing about the better optics of the new high definition lenses (a variety of brands) over the high Index lenses that I have be using. In the past. I haven't loved my progressive lenses and have had some difficulty with reading and night vision, so the promise of possibly having crisper clearer vision is very appealing. I would like to hear from people who have purchased high definition progressive lenses. I am wondering what brand of HD lenses you purchased and/or who you purchased them from; if the difference was noticeable over whatever you were previously using and if the change was good or bad. Please also state what kind of glasses you previously had. Basically I want to know if you would recommend them or not. I really appreciate your input!</p>