Search 'iritis'. Many of us have travelled to get a thorough diagnosis and advice from the best doctors and their teams doing current research, and it has been expensive but worth it. Then, with a better diagnosis, we use ophthalmology services nearer to home as well. The best local services are at the university teaching hospitals. You are looking for cornea, external disease, anterior segment (beware the laser or cataract surgeon, they may or may not be good at this), possibly uveitis inflammation, specialists. If you post up your region, you may get a recommendation by personal message.
Paediatric ocular rosacea ~ primum non nocere