I posted this as a seperate thread because some people may not go in Leannehs thread again now they posted and also saw that Vince is ok which I am pleased about btw.
Anyway, I think it was Mish who commented about what if one went in their eye.
Well, Sleets had this happen and this can happen:


Taken on 18th June last year, her eye was normal at 5:15pm as I'd been outside with them repotting plants and she was mithering me with a tennis ball the whole time. I then went inside for a while. At 7:30pm, I went to take them out and she was like this. Her eye was obviously bothering her quite a lot too and I felt so sorry for her. She went to the vets the next day and the vet who looked thought it might be glaucoma but a mate of mine who breeds GSDs didn't agree saying she was too young and the symptoms didn't seem right. He had also been at the vets that same day with one of his dogs and the vet nurses who all know sleet anyway and another vet also didn't think it was that which made me feel better after the initial worrying. Anyway, with anti-inflammatories etc..the swelling went down pretty quick but the eye continued to weep. I was given eye drops but the weeping never went away. Nearly a month later before our own flyball tournament which was on July 12 and 13th, I took her back because of the weeping. She had her eye examined with local anaesthetic in it and nothing could be seen so she was given some different eye drops. Whilst at the flyball tournament, I was putting some drops in and I noticed something just poking out of her tear duct as I pulled her lid back to put the drops in. I showed my parents too when I got home and decided to take her to the vets the next day. I showed the vet and he looked at me in shock and apologized for not seeing it before. To be honest, I don't think it was there to be seen before anyway.
He got some tweezers and pulled out what I thought was going to be a little grass seed. It turned out to be a length of grass an inch long. As there was a bit more sticking out too, he pulled that and that was also about an inch long...then he got two more little pieces off..laying them all on his forearm...and this was all inside her tear duct. How it got there is anyones guess.
Her eye went back to normal pretty much straight away. In fact, it looked like nothing had ever happened to it later that day.
As our local fields is all long grass everywhere, I have no option but to walk them where there is long grass. Nothing like this ever happened to my previous two dogs mind. I'm still careful with grass seeds and such though.
So, if this happens to your dogs eye at this time of year, think of Sleet and the cause for hers. I'm thinking of printing one of these off for the vets because they really were all stumped with this one before we found out it was grass in the tear duct.