Prescription Cycling Glasses I visited my optician last week and the time has finally come for me to start wearing glasses for driving. As a result of this I figure it is probably a good idea to start thinking about prescription lenses for my cycling glasses too.

Looking on the web, the prescription glasses that I'm seeing are basically "regular" cycling glasses (including regular lenses which may or may not be tinted), plus some kind of insert (clear prescription lenses) which seems to clip to the frame and sit between eye and frame. 

The "insert" appears to be shaped to the frame, so it looks like I'd need to buy both glasses and insert, and possibly throw my current glasses away. (I'd rather not do this, but if I have to, I have to.)

I guess my first question, for anyone who already wears prescription glasses, is whether my description above is accurate or not? Second, does having this insert actually "work"? By "work", I mean being able to ride a bike at decent speed, for several hours, up hills, down dales etc. For example, do people experience fogging problems (moreso than you might with non-prescription glasses)?

My next question is more general, a kind of a technology rec. Are there other viable approaches to prescription cycling glasses, that I should consider? For example is it possible to get prescription tinted plastic lenses that will just snap into a frame? (my gut feel is that I would prefer this approach if possible.) [Edit - I've now seen that this approach seems to be available, albeit at a premium (especially as I'd want lenses in at least two colours).]

For the purposes of this question, it's fine to treat money as irrelevant, I can worry about this later.

Please note lastly that I'm not looking for any advice in the general area of cycling glasses here, I've been using them for years and think I already understand the pros and cons pretty well. It is purely the prescription aspect of things, I'd like to know more about.
I'll answer you comment on contacts, as I think you should investigate it. 

I had the same dilemma a year ago. After wearing glasses for a couple of years for close up stuff, I was getting to the point I needed glasses while out on the trail. I looked around at options and decided to go down the contacts path. I now wear contacts in weekends and while riding, and have progressive lens glasses for work (computer based) that are suitable (although not ideal) for driving and distance. The glasses offer much better performance when its not raining, muddy etc, but when outdoors (biking, fishing, skiing etc) in all weather, contacts win hands down. 

I suggest you discuss contacts this with your optician. There are a vast range out there, from one time use that you take out an throw away to monthly lens than can be left in for a week. Your optician will discuss the in and outs of different types and what suits you, and try various combinations till you get one that works. He will teach you to put them in and take them out - all the stuff that is "creepy" is dealt with - You get shown how to do it properly (and safely), and will be taught how to do it. Although not for everyone, I found it easy to learn to do. 

I know you said cost is not an issue - that is good. Contacts are not cheap - initial fitting costs (where they also teach you how to look after your eyes and the lenses) - and cost of the contacts and cleaners mean glasses work out much cheaper. 

You may also want to discuss lazer surgery with your optician.