A month ago my light Brahma went blind in her left eye. Vet came out & looked at her, I had him assess my coop, space, food,litter type, ventilation, all were appropriate. She showed no respitory symptoms. Now (month later) my Dominique is developing the same eye symptoms & has reduced vision in same eye. Took her to vet, she has a frosted spot under her pupil - no respitory symptoms. The vet even called his old professer for info. Now a month later I saw the light brahma with a few large clear bubbles in blind eye. It does not fit any of the Merak diseases. Plan of treatment now is worming, 2 weeks antibiotics, & worming again. Thinking maybe they have reduced immunity from virus & secondary infection- parasites/bacterial/fungal. Got the 5 new "in a horse trade". The Brahma is from a bird auction I believe... Stupid Stupid Stupid. This illness is slow moving. I'm guessing I'll end up with a closed flock. It is not any commen illness. Tears are streaming right now. Hoping my 2 original I raised from chicks were vaccinated for a few things at the hatchery. ****Any info or sources of info would be heaven sent.