Microcrystals anyone?

My Ironman training was interrupted at the weekend by the crazy weather. So, like you do, I went off to the local slopes with my sons and Henry (the dog) for a bit of winter fun. As the wind swept across the hills I struck up a conversation with a nice chap sporting a pair of ski goggles. Slightly over the top I thought until he informed me that 'the cold can damage the eyes you know'. If I hadn't have been off duty I might have impressed him with my knowledge of snow ophthalmia. And anyway my youngest needed a push.