How do i help this kitten WANT to eat on his own?

i found this little (maybe 8 week old) kitten last friday night. i took him to the vet first thing saturday morning. the vet gave me ointment for his eyes because they were sealed shut with infection and oral antibiotics for his congestion. when i found him he could barely even breath or move for that matter. he looks better and sounds a lot less congested. i've been forcing kitten milk down his throat every couple of hours and he reluctantly takes it but i'd really like to see him showing some interest in eating or drinking on his own. he might be blind but i'm not sure yet. i pry his eyes open and put the ointment in his eyes twice a day but he doesn't try to open them on his own yet. he seems so pitiful but i'm still holding out hope. i know i should go ahead and get him tested for feline aids and leukemia but i guess i'm stalling because i don't want to find out that he really is that sick.