Eye inflammation is a broad label for a red, sore or light-sensitive eye caused by the immune system reacting inside or on the surface of the eye. It ranges from mild lid margin irritation (blepharitis) and conjunctivitis to deeper problems such as keratitis of the cornea, scleritis of the white wall of the eye and uveitis, which affects the iris and the layers behind it.
The surface forms are common and usually settle without lasting harm. The deeper forms are less common but matter more, because repeated or untreated uveitis and scleritis can cause cataract, raised eye pressure, macular swelling and permanent loss of sight. Telling the two groups apart needs a slit lamp examination, not a guess from the redness alone.
Symptoms
- Redness, either across the whole eye or as a ring around the coloured part
- Aching pain that may worsen when you focus on near objects
- Marked sensitivity to light
- Blurred or hazy vision
- Floaters or a veil of small dots, typical of inflammation at the back of the eye
- Watering without sticky discharge
- Deep, boring pain that wakes you at night, which suggests scleritis
- Crusting and itching of the lid margins in blepharitis
Causes and risk factors
Many cases have no identifiable cause. Others are linked to autoimmune and inflammatory conditions such as ankylosing spondylitis, sarcoidosis, juvenile idiopathic arthritis, inflammatory bowel disease, Behcet disease and rheumatoid arthritis. Infections can also inflame the eye, including herpes viruses, toxoplasmosis, tuberculosis and syphilis. Injury, previous eye surgery, contact lens overwear and some medicines are further triggers. Behcet disease is notably more common in Türkiye and along the old Silk Road, so local eye specialists see a lot of it.
How it is diagnosed
- Slit lamp examination: A microscope view of the front of the eye shows inflammatory cells, deposits on the cornea and adhesions of the iris, and separates surface irritation from uveitis.
- Dilated fundus examination: Drops widen the pupil so the retina, optic nerve and vitreous gel can be checked for inflammation at the back of the eye.
- Eye pressure measurement: Both the inflammation and the steroid drops used to treat it can raise the pressure, so it is checked at each visit.
- OCT scan: A quick light-based scan that detects macular swelling, the most frequent cause of lasting blur in uveitis.
- Blood tests and chest imaging: Used selectively to look for an underlying systemic disease or infection when inflammation is recurrent, severe or affects both eyes.
- Fluorescein angiography: Dye photographs that show leaking or blocked retinal vessels in posterior uveitis and vasculitis.
Treatment options
- Steroid eye drops: The first treatment for anterior uveitis, started frequently and tapered slowly over weeks. Stopping early often causes a rebound.
- Pupil-dilating drops: Relax the painful spasm of the iris muscle and stop the iris sticking to the lens.
- Steroid injections or implants: Placed beside or inside the eye for inflammation behind the lens or for macular swelling that drops cannot reach.
- Oral steroids and immunosuppressants: Medicines such as methotrexate, azathioprine or mycophenolate control sight-threatening or chronic disease and allow the steroid dose to come down.
- Biologic therapy: Adalimumab and similar agents are used for uveitis that does not respond to conventional drugs, including Behcet disease.
- Treating an infection: Antiviral, antibiotic or antiparasitic treatment comes first when an infectious cause is found, because steroids alone can make it worse.
- Lid hygiene and lubricants: Warm compresses, lid cleaning and artificial tears are the mainstay for blepharitis and mild surface inflammation.
When it is urgent
See an eye doctor the same day, where you are, for a painful red eye with blurred vision or strong light sensitivity, a red eye in a contact lens wearer, sudden loss of vision, a shower of new floaters, or severe eye pain with headache and vomiting. These can threaten sight within days and should not wait for a planned trip.
Travelling to Türkiye for treatment
An acute flare needs treatment locally, quickly. Travel makes sense for a second opinion on recurrent or chronic uveitis, a structured work-up for an underlying cause, or a planned procedure such as a steroid implant or surgery for a complication like cataract once the eye has been quiet for some months. Long-term immunosuppression needs regular blood tests and monitoring near home, so agree in advance who will supervise it after you return.
Send your reports, scans and a short history and a Clinic-Y coordinator replies within 24 hours with suitable teams and written, all-inclusive proposals side by side. Reviewing your case is free.
Frequently Asked Questions
Is a red eye always conjunctivitis?
No. Conjunctivitis usually causes discharge and grittiness with good vision. Pain, light sensitivity or blur point to something deeper and need an examination.
Will uveitis come back?
It often does. Some people have one episode, many have occasional flares, and a smaller group have chronic disease that needs ongoing medication.
Are steroid drops safe?
They are effective and necessary, but long use can raise eye pressure and speed up cataract, which is why follow-up visits and a planned taper matter.
Can I wear contact lenses?
Not during active inflammation. Your ophthalmologist will tell you when it is reasonable to restart.