Hello, I am Dr. Zoe, a licensed veterinarian here to help. What sort of discharge are you seeing from this affected eye (e.g., green mucousy discharge that accumulates at the corner)? Does the eye seem painful, itchy or very red? And does he seem to be holding this eye open as normal or at half mast? (thanks for answering my questions..helps me to understand what is going on)

At his age, my top concern when you are seeing any sort of filmy discharge is that he may have traumatized the cornea (clear part in front of the globe) or an area around the eye. In addition to discharge, though, you may also see him holding his eye more closed than normal. This is an indication to take him in to be seen right away (today if your vet is open) because we do not want the damage to worsen and prescription medication will be needed. If the problem is that the actual cornea (clear part) looks foggy, then this indicates trauma (like an ulcer as previously mentioned) or something going on inside the eye like uveitis (inflammation) and this also indicates an immediate visit is needed to have this checked out.

What can you do at home? You can flush out his eyes with ocular saline as made for people and you can purchase this at any pharmacy. And you can use lubricating drops such as Celluvisc or Refresh. But that is about all you can do OTC. My best recommendation is to have this seen ASAP.