Thank you so much for the update.
Very glad that Buster had his eye looked at that closely for any foreign bodies, and hopefully his eye will continue to improve.
There are systemic diseases and diseases of the eye that are not just on the surface but can cause conjunctivitis (like tick borne diseases, lymphoma, and glaucoma), so if his eye does not continue to improve Buster would have to be checked for those.
Hopefully and probably tho', his conjunctivitis will continue to improve with the eye drops.
Thank you again,