I have a 15 year old QH gelding that I have had for four years. In April, he obtained a corneal ulcer in the middle of his left eye. This was a first for me, and for him as far as I know. A lavage system was placed and the ulcer resolved after a week of ****. At his point, I kept a normal fly mask on him 24/7 and checked his eyes twice a day.
On July 1st, he got another ulcer in his opposite eye. I caught this one very early and took him right in for the lavage. The vet, an equine specialist, said the eye appeared to have possibly been scraped and 3 small ulcers were in the front upper portion of his cornea. After these ulcers healed, I purchased two Guardian fly masks with 95% UV protective eye cups in hopes of preventing any more ulcers. He wears these masks 24/7 and a clean one is placed on him everyday. I obsessively inspect his eyes, for I have become paranoid.
On July 28th, I removed his mask for the daily inspection, and to my disbelief, he had an ulcer in his right eye again. This ulcer appears to be just posterior of his pupil. He is now at another Equine vet clinic with his 3rd lavage system. The vets seem to be at a loss as to what could cause these besides trauma. It is almost impossible that anything even touched his eye the 3rd time. I am very careful not to make contact with his eyes when applying his masks and I never let him go without one.
I have spent nearly $5,ooo dealing with these ulcers in the past 3 months and can not afford to keep doing this. Does anyone have any ideas as to what could be causing this? Thank you for your time.