Not everyone here on WeightWeenies is a twenty-something with perfect vision. I was surprised to see that there was not one single topic for bifocal wearers in Cycle Chat. There are a handful of mentions, but no standalone threads. Maybe we can have one where some of us older WeightWeenies can find valuable information on the topic.
My experience is that I need reader (magnifying) lenses to read anything arm's length or less to my eyes. I have perfect vision for distant objects. I prefered to ride with wrap-around sunglasses to keep my eyes from watering. But, what I found over the last two years was that it was getting harder and harder to see my Garmin Edge out in front of my handlebars. It wasn't the size of the fields. If the fields were bigger they were bigger and still out of focus. This caused me to learn to drop my head and place the Garmin in the center of my field of vision and then concentrate on focusing. The concentration time was lengthening as time went on. It was at a dangerous point as it took too much focus from where I was going to even see the simplest information on the Edge.
So I went looking on various cycling forums for information on bifocal. Much to my surprise, there is very little. I did find that only a handful of the top tier sport glasses manufacturers actually make readers. Almost all will have some sort of RX solution, but not too many have a way for people like me to see clearly.
I did find that Tifosi, whom I have never had any experience with, did have several pairs of glasses with interchangeable lenses that are available in multiple diopters of magnification. I chose the Veloce with a +2.00 bifocal lens.
I have now been on a few rides with the Tifosi and I can tell you that they work. I am having to relearn not to drop my head to focus because if I do I am looking through the top unmagnified part of the lens and it's fuzzy again. But it is like switching from Shimano shifting to SRAM double-tap and back, it should be an easy transition to learn to keep my head up and looking down the road and just glance at the now tack sharp Garmin Edge. There are a things I like and dislike about the Tifosi. I like the bifocal and it's lower location on the lenses. I like the shape of the glasses and the fact that the Veloce fits larger head sizes. I don't like the lack of adequate adjustability in the nose piece (it does adjust some) and I don't like the way the lenses sweep inward towards your cheeks as they are just a bit much and the bottom of the lenses touch my cheeks.
I am really hoping others will add to this discussion and tell us about other glasses they are using or have used in the past, including stick on types. How effective they are and how they fit would be nice to know also.
Here is a link to the specific Tifosi sport glasses I purchased: Tifosi Veloce Matte Black Smoke Reader +2.0
They are also available with their Fototec