This poem won third prize in the 2006 Forest Arts competition. I seem to remember the competition was sponsored by Dollond and Aitchison, and the theme was 'Vision'.
SPECS AND THE BIKE
Don't scrape your face with chains, don't even dare
ride redesigned wheels fashionably square.
That isn't how it works. But, if you like:
Both have two discs, not touching, edge to edge.
Both have a frame that's set up to engage
with human flesh. Both work best in the light.
And both bring what you'd not have seen to sight.
In those ways, glasses map on to a bike.