Cataracts are a good reason to wear sunglasses, or indeed prescription glasses, which have as a matter of course, UV protection by law in most developed countries. Especially near the poles where the Ozone Holes can cause increased UV levels.

Years ago I used to favour a particular style of Bolle safety glasses, they were, for the time, the outrageous sum of $15, I could buy a set of replacement lenses for $10. I saw exactly the same design frames in a sunglass shop for $300 being sold as designer sunglasses. I figured eventually the two divisions of Bolle must have realised the conflict. They resolved it by not selling the safety glasses any more.

Last lot of "cycling" glasses I got came from the safety shop- $6 a pair.

Incidentally I love my SPD sandals. Very Fred-ly especially when worn with luridly coloured socks, baggy shorts, a normal looking shirt and a helmet mirror. Nothing drives a weekend lycra warrior crazier than being passed by a Fred.