Right eyes on 2 lavender orpingtons

[Fourboysandchicks]

Both of my lavender orpingtons have their eyes that look like this the past 2 days. One eye on each chicken and the same side on each chicken. Any advice would be great. None of my other breeds have any eye issues that I can see. Both are eating and drinking.
#1. This chicken keeps this eye shut quite a bit- but it can open it.

#2 this chicken keeps the eye open, but has this buldge

 

[Eggcessive]

It could be a case of mycoplasma gallisepticum (MG,) a chronic respiratory disease that causes conjunctivitis (pinkeye) and sinus infection. The sunken eye appearance, and bubbles or secretions can be signs. Tylan 50 injectable given orally, or Tylosin (Tylan) powder put into the water can be a treatment. Here is some reading about MG:
https://extension.umd.edu/sites/ext... Mycoplasma gallisepticum (MG) Infecti....pdf