Description: Learn everything about uveitis, including its causes, symptoms, diagnosis, treatment options, complications, and prevention. Discover how early diagnosis can help protect your vision.

Focus Keyword: What is uveitis

Secondary Keywords: uveitis symptoms, eye inflammation, anterior uveitis, posterior uveitis, uveitis treatment, eye pain, blurry vision, iritis

What Is Uveitis?

Uveitis is an inflammatory condition affecting the uvea, the middle layer of the eye. The uvea contains many blood vessels that nourish the retina and other important eye structures. When this layer becomes inflamed, it can damage delicate eye tissues and, if left untreated, lead to permanent vision loss.

Uveitis is considered an ophthalmic emergency in many cases because inflammation can progress rapidly. Although it can affect people of all ages, it is most commonly diagnosed in adults between 20 and 60 years of age.

Prompt diagnosis and treatment significantly improve the chances of preserving vision.

Table of Contents

• What is the uvea?
• What is uveitis?
• Types of uveitis
• Causes
• Risk factors
• Symptoms
• Diagnosis
• Treatment
• Possible complications
• Recovery
• Prevention
• When to see an eye doctor
• Frequently Asked Questions

Understanding the Uvea

The uvea is the middle layer of the eye located between the white outer coat (sclera) and the retina.

It consists of three important structures:

1. Iris

The colored portion of the eye that controls how much light enters through the pupil.

2. Ciliary Body

Produces aqueous humor and helps the eye focus by controlling the lens.

3. Choroid

A vascular layer that supplies oxygen and nutrients to the retina.

When inflammation affects any of these structures, it is called uveitis.

Types of Uveitis

1. Anterior Uveitis

Also called iritis or iridocyclitis.

This is the most common type.

Affected structures

• Iris
• Ciliary body

Common symptoms

• Eye pain
• Redness
• Light sensitivity
• Blurred vision

2. Intermediate Uveitis

Inflammation mainly affects the vitreous and peripheral retina.

Symptoms include:

• Floaters
• Blurry vision
• Mild discomfort

3. Posterior Uveitis

Inflammation occurs in the retina or choroid.

Symptoms include:

• Reduced vision
• Floaters
• Distorted vision
• Blind spots

Posterior uveitis usually requires urgent specialist treatment.

4. Panuveitis

The entire eye becomes inflamed.

This is the most severe form and may threaten vision if not treated promptly.

Causes of Uveitis

Uveitis may occur because of infections, autoimmune diseases, injuries, or unknown causes.

Autoimmune Diseases

Examples include:

• Ankylosing spondylitis
• Rheumatoid arthritis
• Psoriatic arthritis
• Behçet disease
• Sarcoidosis
• Juvenile idiopathic arthritis
• Inflammatory bowel disease
• Lupus

Infectious Causes

Common infections include:

• Herpes simplex
• Herpes zoster
• Tuberculosis
• Syphilis
• Toxoplasmosis
• Cytomegalovirus
• Lyme disease
• HIV-related infections

Eye Trauma

Inflammation may develop after:

• Eye injuries
• Burns
• Penetrating trauma
• Eye surgery

Medications

Rarely associated with:

• Rifabutin
• Cidofovir
• Bisphosphonates
• Certain immunotherapies

Unknown Causes

Nearly half of all uveitis cases are idiopathic, meaning no clear cause is identified.

Risk Factors

You may be at increased risk if you have:

• Autoimmune disease
• Recent eye infection
• Previous uveitis
• Family history
• Smoking
• Immune deficiency
• Eye injury

Symptoms of Uveitis

Symptoms may appear suddenly or gradually.

Common symptoms include:

• Eye redness
• Eye pain
• Blurred vision
• Floaters
• Sensitivity to light (photophobia)
• Decreased vision
• Small pupil
• Excessive tearing
• Headache (sometimes)
• Dark spots in vision

Symptoms affecting both eyes should never be ignored.

How Is Uveitis Diagnosed?

Early diagnosis is essential.

Medical History

Your ophthalmologist will ask about:

• Recent infections
• Joint pain
• Autoimmune disorders
• Eye injuries
• Previous episodes

Eye Examination

Includes:

• Visual acuity
• Slit-lamp examination
• Intraocular pressure
• Dilated retinal examination

Imaging Tests

Depending on the case:

• Optical Coherence Tomography (OCT)
• Fundus photography
• Fluorescein angiography
• OCT angiography
• B-scan ultrasound

Laboratory Tests

Doctors may order:

• Blood tests
• Tuberculosis screening
• Syphilis testing
• Autoimmune markers
• Chest X-ray or CT scan
• MRI in selected cases

Treatment of Uveitis

Treatment depends on the underlying cause.

Corticosteroid Eye Drops

Often the first treatment for anterior uveitis.

They reduce inflammation quickly.

Oral Steroids

Used for severe inflammation.

Steroid Injections

Injected around or inside the eye for posterior disease.

Immunosuppressive Drugs

Examples include:

• Methotrexate
• Azathioprine
• Mycophenolate mofetil

Used for chronic autoimmune uveitis.

Biologic Therapy

Patients with severe autoimmune disease may receive biologic medications under specialist supervision.

Antibiotics or Antivirals

Used only when infection is responsible.

Cycloplegic Eye Drops

These drops:

• Reduce pain
• Prevent iris adhesions
• Relax eye muscles

Surgery

Some patients require:

• Vitrectomy
• Cataract surgery
• Glaucoma surgery

Possible Complications

Untreated uveitis may lead to:

• Cataract
• Glaucoma
• Macular edema
• Retinal detachment
• Scar formation
• Optic nerve damage
• Permanent blindness

Early treatment greatly reduces these risks.

Recovery

Recovery depends on:

• Type of uveitis
• Cause
• Severity
• Treatment timing
• Patient compliance

Anterior uveitis often improves within weeks, while posterior or panuveitis may require months of treatment and long-term follow-up.

Can Uveitis Be Prevented?

Not all cases are preventable, but you can reduce your risk by:

• Managing autoimmune diseases
• Treating infections promptly
• Wearing protective eyewear
• Avoiding smoking
• Keeping regular eye examinations
• Following prescribed medications

When Should You See an Eye Doctor?

Seek urgent medical attention if you experience:

• Sudden eye pain
• Red eye with blurred vision
• Light sensitivity
• New floaters
• Flashes of light
• Sudden vision loss

Early evaluation can prevent irreversible vision damage.

Frequently Asked Questions

Is uveitis an emergency?

Yes. Many cases require urgent evaluation because untreated inflammation can permanently damage the eye.

Can uveitis cause blindness?

Yes. Severe or untreated uveitis can lead to irreversible vision loss due to complications such as glaucoma, cataract, macular edema, or retinal damage.

Is uveitis contagious?

No. Uveitis itself is not contagious, although some infections that trigger it may be transmissible.

Can uveitis come back?

Yes. Recurrent episodes are common, especially in people with autoimmune diseases, making regular follow-up essential.

How long does treatment last?

Treatment may last from a few weeks for mild anterior uveitis to several months or longer for chronic or recurrent forms.

Key Takeaways

• Uveitis is inflammation of the eye's uveal tract and can threaten vision if not treated promptly.
• It may result from autoimmune diseases, infections, trauma, medications, or unknown causes.
• Common symptoms include eye pain, redness, blurred vision, light sensitivity, and floaters.
• Diagnosis involves a detailed eye examination and, when needed, imaging and laboratory tests.
• Treatment may include corticosteroids, cycloplegic drops, immunosuppressive therapy, biologic agents, or antimicrobial medications depending on the cause.
• Early diagnosis, appropriate treatment, and regular follow-up are the best ways to preserve vision.

Keywords: what is uveitis, uveitis, eye inflammation, anterior uveitis, posterior uveitis, intermediate uveitis, panuveitis, uveitis symptoms, uveitis treatment, iritis, photophobia, blurry vision, autoimmune eye disease, retinal inflammation, eye pain.