Monkey Treefrog - Eye diseases

[butab]

Hi everyone, I just discovered my baby monkey tree frog's (3cm long) right eye is swalloned suddenly, and it is in red color looks like blood; and it may be the reason for him closed the other eye only when sleeping.

Initially thought that it might be a cricket bite / infection; and i would like to know if there's any medication to cure before seeing the vet.

Thanks a lot.