this sounds like it could possibly be Reiter Syndrome/Reactive Arthralgia which is known to attack the eyes (iritis, uveitis, high intra-ocular fluid pressure/inflammation, etc)....you will want to be tested for the HLA-B27 gene marker which gives you a much higher probability of getting conditions like Reiter's/ReA -- though there are poenty of people, like me, who have quite severe Reiter's and yet are HLA-B27 negative.
(There are several new gene markers for inflammatory disease being discovered and will soon be available for testing, but for now B27 is all there is to look for)
I would most definitely get checked out by a Rheumatologist or someone else who has seen a few different types of Reiter's/Reactive Arthritis/Reactive Arthralgia and might be able to accurately diagnose you.
In the mean time, think back.....was there any sort of infection, food poisoning, etc. that preceded these symptoms? Even if it was months or years before the eye pain began? Research Reiter's and see if you can recognize any of the many different possible symptoms......
Conditions: Reactive Arthralgia (AKA Reiter Syndrome), Chronic Pelvic Pain Syndrome, Sacroiliitis, Costochondritis, widespread Tendonitis, severe back pain & spasms with numerous spinal problems, barely able to type anymore due to severe full-body runaway inflammation, and on and on. Typical daily pain levels exceed 8.5(!)
Medications: CURRENTLY CROSS-TAPERING (Methadone & Oxycodone ER), Dilaudid, Marinol & Medicinal (doctor-prescribed) Cannabis, Lidocaine Patches, Flexeril, Soma; many herbs & supplements.
Previous medications: Oxycontin, Opana ER (12 hour time releasd Oxymorphone, Endo Pharm.), generic Mylan Fentanyl patches (two 100mcg/hr patches worn simultaneously, changed every two days), Kadian, Avinza, MS Contin, Lortab (hydrocodone), OxyIR, Baclofen, Testosterone (oral, patches, gel), Cymbalta, Lyrica, Neurontin, Amitryptyline, every NSAID known to man, Prednisone....and many, MANY more.