Dog Eye Swelling My Dog Has A Scary Eye Problem- Swelling/inflamation In The Corner Of The Eye?

My dog has a scary eye problem- swelling/inflamation in the corner of the eye? - dog eye swelling

Dog experts please help!

Today I woke up searching for something much fear in the eyes of my dogs. In his right eye in the corner, it seems that if inflammation / inflation. The meat, which is every corner make everything visible when the eye is big and red / pink. It does not bleed, but it seems to swell.

It seems to be in pain or anything.

Is this a common problem in dogs? Here is a photo, but it's not a very clear picture of the problem:

Direct link: http://aycu34.webshots.com/image/24793/2004833140971536896_rs.jpg