التهاب العنبية: لماذا يحتاج احمرار العين مع الألم وحساسية الضوء إلى فحص سريع؟

English version

Uveitis: Why a Red, Painful, Light-Sensitive Eye Needs Prompt Assessment

Where does uveitis occur?

The uvea includes the iris, ciliary body and choroid. Anterior inflammation often causes redness, pain and photophobia, while intermediate or posterior disease may mainly cause floaters and blur without obvious redness.

Iritis can make light painful because the inflamed iris moves. Symptoms alone cannot show the location or severity, so a mild-looking red eye should not be self-treated for days.

Possible causes

Uveitis may be associated with an immune-mediated condition, infection, trauma, medication or no identifiable cause. Back pain, joint stiffness, mouth ulcers or skin symptoms can guide the history, but they do not establish a diagnosis by themselves.

Do not start steroid eye drops without an examination. If infection is present, steroids can worsen or mask it, and some patients also develop a pressure rise with steroid treatment.

How is it diagnosed?

A slit-lamp examination can show inflammatory cells and haze inside the eye. Pressure measurement and a dilated retinal examination are also important, with OCT or other imaging when macular swelling or posterior disease is suspected.

Blood tests and systemic referrals should be targeted rather than automatic for every patient. The work-up depends on age, recurrence, examination findings and medical history.

Treatment is individualized

Anterior disease may need anti-inflammatory drops and a dilating drop to reduce pain and prevent adhesions. The dose and taper are clinician-directed; stopping a steroid abruptly can allow inflammation to rebound.

Intermediate, posterior or recurrent disease may require periocular or intravitreal treatment, systemic therapy or steroid-sparing immunomodulation with other specialists. The goal is to control inflammation while protecting the retina, optic nerve and pressure.

When is urgent care needed?

Sudden vision loss, severe pain, headache with vomiting, halos around lights, or a sudden shower of floaters and flashes needs urgent assessment. Avoid contact lenses and do not patch the eye before evaluation.

Uveitis can recur after symptoms improve. Follow-up and pressure checks are part of treatment, not optional paperwork.

Frequently asked questions

Is uveitis contagious?

Most uveitis is not spread between people, although an infection elsewhere in the body or inside the eye can be a trigger. The cause must be assessed before treatment.

Does every red eye mean uveitis?

No. Allergy, dryness and conjunctivitis are common, but pain, photophobia and reduced vision require exclusion of intraocular inflammation.

Can steroid drops harm the eye?

They can be essential, but require a prescription and monitoring because some patients develop pressure elevation or other side effects.

Does uveitis go away permanently?

Some episodes resolve, while others recur depending on the cause. Early control and follow-up reduce the risk of swelling, adhesions and vision loss.

Medical note: This content is for education and does not replace an ophthalmic examination. Sudden vision loss, severe pain or new flashes require urgent assessment.