What's wrong with my eyes?

i went to bed feeling good and then i woke up with my eyes stuck together. so i went to the bathroom and put water to clean them up and when i finally could open my eyes they were red and swollen...my eyes were stuck my this green stuff and its also sticky. i've been like that since Friday and its monday already..please help me my eyes hurt and are swollen. i went to wal-mart to buy eye drop thingy and i bough visine-A eye allergy relief eye drops, once i put tht in a few mins. later my eyes burn when i blink. so once again please help me cause i don't know what to do. also just for information i have a sheltie dog. since my cousins slept over for three days he's been inside cuz they like him. but he's an outside dog. they came tuesday and left thursday. he's outside once again