I resisted buying eye wear, 'til one ride I collected too many midges and assorted bugs in my eyes.
That was this summer.
Now in the winter they too prove to be invaluable. This is my choice, and clearly (pun!) they have an all year 'round application.
There are some very £££ glasses out there, and normally I never even consider eye wear unless it's glass, * but for mountain biking that's not a good policy, so I offer up my simple yet effective solution to bugs, your own bike's spray and the bike in front's detritus.
Tim
* how many quality optics do you know of that (even exist!) and that you'd willingly consider putting on your D/SLR camera? None. That's why I never personally wear plastic lenses other than when doing sport - they're simply optically inferior and as likely to give you a headache over time through mild eye-strain as keep the sun at bay.
G'damn - spell check doesn't work on your title / heading in Edit mode!
I haven't worn any eyewear on the bike since the summer and won't till it snows (tonight in theory). They just mist up and get plastered in mud. I just shut my eyes through the puddles.
Spring, summer, autumn or winter, some kind of eye protection is essential. You don't want a twig in your eye. A scratch on the cornea is not fun. Unless you're just going to stick to well-worn tracks (not a great idea when it has been pissing down), there's always a risk of a bit of overhanging foliage giving you a poke in the eye, and that can mean the end of the ride.
I find myself agreeing with Tim - I'm an all-year-round eyewear person. Although I wear contact lenses, so it's a double must. Not winter-specific, though, so I nominate, um, warm, dry gloves I think. Or maybe warm, dry socks/shoes. One of those or the other
First person to say "mud tyres" gets a poke in the eye
Never mind. Glass eyes can be such a hoot at parties. A pal of mine fakes a coughing fit, whereby step forward comic side-kick and a heft slap on the back. .... pop! You can imagine the rest.
Almost as fun as Parker and Lady Penelope as a 2x man gag.
Tim
(available for children's parties, funerals, Bar mitzvahs and weddings)
Eyewear's a year round thing for me too- even the tiniest bit of cack under a contact lens can render you near blind for ages. They've also been known to freeze in the seriously cold weather!