Uveitis (iritis) in adults and children symptoms and treatment
The eye is one of the most important senses we rely on in our daily lives, and any problem affecting it can significantly impact our quality of life. Among the conditions that can affect the eye and are often overlooked is uveitis (iritis), which is considered a condition that requires prompt attention and treatment to avoid serious complications.The problem is that the symptoms of iritis may start off mild, such as slight redness or sensitivity to light, but over time they can worsen and noticeably affect vision if not properly managed.In this article from Dalili Medical, we will explore everything you need to know about uveitis, from its causes and symptoms to when it becomes dangerous for the eye, as well as the most important treatment methods that help recovery and protect vision.
What is Uveitis (Iritis)?
Uveitis (iritis) is an inflammatory condition that affects the middle layer of the eye, known as the uvea. This layer is responsible for supplying blood and nutrients to the eye. It is considered a serious condition that can affect eye health if not treated promptly.
Symptoms of uveitis usually include eye redness, noticeable pain, extreme sensitivity to light, and blurred or decreased vision. The condition varies depending on the affected area; it may be anterior, intermediate, posterior, or in some cases involve the entire eye.
Causes of uveitis include autoimmune diseases, viral or bacterial infections, or direct injury to the eye.
Is uveitis a serious condition?
Yes, uveitis is considered a serious eye condition that should not be ignored. If left untreated, it may lead to severe complications such as vision impairment or even permanent vision loss. Early diagnosis and treatment are essential.
Is uveitis contagious?
In most cases, uveitis is not contagious because it is often related to autoimmune disorders.
However, if it is caused by a viral or bacterial infection, the infection itself may be contagious—not the uveitis.
Who is more likely to develop uveitis?
Certain groups have a higher risk, including:
- People with autoimmune diseases such as rheumatoid arthritis and lupus
- Individuals with chronic inflammatory conditions
- Those with a previous history of uveitis
- People who have had eye injuries or eye surgery
Are sunglasses recommended?
Yes, wearing sunglasses is strongly recommended during uveitis. They help reduce light sensitivity, protect the eyes from harmful rays, and provide comfort during recovery.
Can uveitis return after recovery?
Yes, uveitis can recur in some cases, especially when it is linked to chronic autoimmune diseases or when the underlying cause is not fully treated. Regular follow-up with a doctor is important to reduce recurrence.
Can uveitis go away on its own?
Uveitis rarely resolves without medical treatment. In most cases, it requires proper medical intervention. Ignoring it may lead to complications such as eye adhesions or increased intraocular pressure, which can affect vision.
Can contact lenses be used during uveitis?
No, contact lenses are not recommended during uveitis. They may increase irritation and delay healing. It is better to use glasses until full recovery.
Types of Uveitis (Iritis)
Uveitis is classified according to the location of inflammation inside the eye. Each type differs in symptoms and severity:
1. Anterior Uveitis (Iritis)
This is the most common type and affects the front part of the eye, especially the iris and sometimes the ciliary body.
It is characterized by symptoms such as eye redness, pain, and light sensitivity. Although common, it is usually less severe if diagnosed and treated early.
2. Intermediate Uveitis
This type affects the middle part of the eye, particularly the ciliary body and vitreous (the gel inside the eye).
It often causes blurred vision or floaters and may occur in otherwise healthy individuals or be associated with immune system disorders.
3. Posterior Uveitis
This type affects the back of the eye, including the choroid and sometimes the retina and surrounding blood vessels.
Although less common, it is considered more serious because it directly impacts vision and may lead to complications affecting eyesight.
4. Panuveitis
This occurs when inflammation affects all parts of the uvea—front, middle, and back.
It presents a combination of symptoms from all types and is considered one of the most complex forms, requiring careful diagnosis and comprehensive treatment under specialist care.
Causes of Uveitis (Iritis)
Uveitis (iritis) is an eye condition that can result from several different factors. It affects the middle layer of the eye (the uvea), which plays an important role in controlling light entry and nourishing eye tissues. Causes vary between local eye-related factors and systemic (whole-body) diseases, and in some cases, the exact cause remains unknown.
1. Local (Direct Eye-Related) Causes
These are factors that directly affect the eye and lead to inflammation:
Viral or bacterial infections:
Such as herpes infection, which is one of the most common causes, as well as bacterial infections that may occur after eye injury or contamination.
Eye trauma or injury:
A strong blow or cut to the eye can trigger sudden inflammation of the iris.
Eye surgery:
Procedures such as cataract surgery or corneal transplantation may sometimes lead to uveitis as a postoperative complication.
2. Systemic (Body-Related) Causes
In some cases, uveitis is linked to diseases that affect the entire body:
Autoimmune diseases:
Such as rheumatoid arthritis, systemic lupus erythematosus, and psoriasis, where the immune system attacks healthy tissues, including the eye.
Chronic inflammatory diseases:
Such as inflammatory bowel disease (IBD) or Behçet’s disease, which are associated with recurrent eye inflammation.
Infectious diseases:
Such as tuberculosis, chlamydia, and certain viral infections that can spread through the body and affect the eye.
3. Unknown Causes (Idiopathic Uveitis)
In some cases, no clear cause can be identified. This is known as idiopathic uveitis.
It often appears suddenly and may recur, especially in young individuals or people without any known underlying disease.
Stages of Uveitis
Uveitis usually progresses through several stages that vary in severity and duration. Understanding these stages helps determine the appropriate treatment and prevent complications.
1. Acute Stage
This is the initial phase and usually appears suddenly, lasting from a few days to several weeks.
Symptoms:
- Severe redness around the iris
- Eye pain and light sensitivity
- Sudden blurred or reduced vision
- Increased tearing
Clinical findings:
- Presence of inflammatory cells in the eye fluid (aqueous flare)
- Possible constriction of the pupil
Treatment:
- Anti-inflammatory eye drops (such as corticosteroids)
- Pupil-dilating drops to relieve pain and prevent adhesions
2. Subacute / Chronic Stage
In this stage, symptoms become less intense but last longer, from weeks to months.
Symptoms:
- Mild to moderate redness
- Mild eye pain
- Persistent or intermittent blurred vision
Clinical findings:
- Mild adhesions between the iris and lens (posterior synechiae)
- Increased risk of complications such as cataracts or glaucoma
Treatment:
- Continued anti-inflammatory therapy
- Regular follow-up to prevent complications
3. Chronic / Recurrent Stage
This is the most complex stage, lasting months or even years, with repeated flare-ups.
Symptoms:
- Persistent or recurring vision problems
- Mild or sometimes no pain
- Floaters or dark spots in vision
Clinical findings:
- Strong adhesions in the iris or ciliary body
- Changes in pupil shape or color
- Higher risk of glaucoma and cataracts
Treatment:
- Long-term therapy
- May include corticosteroids or immunosuppressive drugs depending on severity and cause
Symptoms of Uveitis
Symptoms vary depending on severity and the affected part of the eye. They may appear suddenly or gradually.
1. Direct Eye Symptoms
- Eye redness, especially around the pupil
- Eye pain (mild to severe)
- Extreme sensitivity to light (photophobia)
- Blurred or reduced vision
- Excess tearing
- Changes in pupil size or shape
- Floaters (dark spots in vision)
2. Systemic Symptoms (if related to a body disease)
- Mild to moderate headache
- Fatigue and general weakness
- Slight fever
- Joint pain or skin rash in autoimmune conditions
3. Symptoms in Chronic or Recurrent Cases
- Repeated episodes of eye inflammation
- Progressive vision loss
- Formation of internal eye adhesions
- Increased risk of glaucoma or cataracts
Diagnosis of Uveitis
Diagnosis depends on careful medical examination and laboratory tests to determine the cause and guide treatment.
1. Medical History and Clinical Examination
Medical history includes:
- When symptoms started
- Whether onset was sudden or gradual
- Presence of pain, redness, or light sensitivity
- History of chronic or autoimmune diseases
- Previous eye injuries or surgeries
Eye examination:
- Slit lamp examination to detect inflammation
- Measuring intraocular pressure (for glaucoma detection)
- Retinal examination if posterior uveitis is suspected
2. Laboratory Tests
Used to identify the underlying cause:
- Complete blood count (CBC)
- ESR (erythrocyte sedimentation rate)
- CRP (C-reactive protein)
- Autoimmune tests: ANA, HLA-B27, RF
- Infection tests if viral or bacterial cause is suspected
3. Imaging and Advanced Tests
- OCT scan to assess retina and vitreous body
- Fluorescein angiography to evaluate retinal or choroidal inflammation
4. Differential Diagnosis
Doctors must distinguish uveitis from other conditions with similar symptoms, such as:
- Acute glaucoma
- Conjunctivitis (pink eye)
- Corneal injuries or scratches
Complications of Uveitis (Iritis)
Uveitis can lead to several complications that affect the eye both in the short and long term, especially if treatment is delayed or inadequate. These complications can be grouped into three main categories:
1. Direct Vision Problems
- Persistent blurred or reduced vision: due to ongoing inflammation or accumulation of inflammatory cells in the eye.
- Floaters or flashes of light: caused by inflammation in the vitreous body or retina.
- Double or distorted vision: if the retina or ciliary body is affected.
2. Intraocular Complications
- Posterior synechiae (adhesions): the iris sticks to the lens, affecting normal pupil movement and vision.
- Secondary glaucoma (increased eye pressure): caused by fluid blockage inside the eye, which may damage the optic nerve.
- Cataract (clouding of the lens): may result from chronic inflammation or long-term steroid use.
- Chronic inflammation of the retina or choroid: can lead to partial vision loss if not properly treated.
3. Long-Term Complications
- Partial or complete vision loss: rare, but possible in severe or untreated cases.
- Recurrent inflammation: makes the eye more vulnerable to future episodes.
- Psychological impact: due to chronic pain and vision problems, affecting quality of life.
Medical Treatment of Uveitis (Iritis)
Treatment depends on severity, location, and underlying cause. It includes topical, oral, and sometimes targeted medications.
1. Main Drug Therapy
A. Topical treatment (eye drops)
Corticosteroid eye drops:
- Purpose: reduce inflammation, redness, and pain quickly.
- Examples: Prednisolone acetate, Dexamethasone
- Note: Must be used under medical supervision to avoid increased eye pressure or cataracts.
Pupil-dilating drops (Mydriatics / Cycloplegics):
- Purpose: relieve pain and prevent iris adhesions.
- Examples: Atropine, Cyclopentolate
B. Oral medications (for severe or recurrent cases)
Oral corticosteroids:
- Example: Prednisone
- Used for severe or widespread inflammation when drops are not enough.
Immunosuppressive drugs:
- Examples: Methotrexate, Azathioprine, Cyclosporine
- Used in chronic or autoimmune-related cases.
C. Cause-specific medications
Antibiotics / antivirals / antifungals:
- Used when the inflammation is caused by infection.
- Example: Acyclovir for herpes infections.
Surgical Treatment of Uveitis (All Types of Procedures)
In severe or chronic cases, surgery may be needed to improve vision and prevent complications:
1. Synechiolysis (Removal of adhesions)
- Goal: break adhesions between the iris and lens or ciliary body.
- Method: performed using delicate microsurgical instruments inside the eye.
- Outcome: improves pupil movement and reduces the risk of pressure build-up.
2. Cataract Surgery
- Goal: remove a cloudy lens caused by chronic inflammation or long-term steroid use.
- Method: replace the damaged lens with an artificial intraocular lens.
- Outcome: improves vision clarity and quality of life.
- Note: surgery is best performed when inflammation is under control.
3. Glaucoma Surgery (Secondary glaucoma)
- Goal: reduce high eye pressure caused by uveitis.
Types:
- Trabeculectomy: creates a drainage channel for excess fluid.
- Drainage implant (shunt): inserts a device to control eye pressure.
- Outcome: protects the optic nerve and preserves vision.
4. Intravitreal Injections
- Goal: deliver anti-inflammatory or immunosuppressive drugs directly into the eye.
- Example: intravitreal steroid injection.
- Outcome: faster and more effective reduction of inflammation.
Prevention of Uveitis (Iritis)
Prevention focuses on reducing risk factors and protecting eye health:
1. General Eye Care
- Protect eyes from injury by wearing safety glasses during risky activities.
- Maintain eye hygiene and wash hands before touching the eyes.
- Treat any surface eye infection quickly to prevent deeper inflammation.
2. For People with Chronic or Autoimmune Diseases
- Proper control of diseases like rheumatoid arthritis, psoriasis, and lupus.
- Regular eye check-ups, especially for those with previous uveitis.
3. After Eye Surgery
- Strictly follow medical instructions and prescribed eye drops.
- Avoid dust, dirty water, and eye rubbing.
- Attend regular follow-up visits.
4. Prevention of Infectious Causes
- Do not share eye drops, towels, or contact lenses.
- Treat viral or bacterial infections early to prevent spread to the eye.
Recovery Time for Uveitis (Depending on Type)
Recovery time varies depending on severity and type of inflammation:
1. Mild (Acute) Cases
- Usually improve within 2 to 6 weeks with proper treatment.
- Symptoms like pain and redness improve within days.
2. Moderate Cases
- May take 6 weeks to 3 months for full recovery.
- Requires regular follow-up and gradual adjustment of treatment.
3. Chronic or Recurrent Cases
- May last months or even years.
- The main goal is often controlling inflammation rather than complete cure.
Factors Affecting Recovery
- Early treatment initiation
- Underlying cause (autoimmune, infectious, or unknown)
- Severity of inflammation
- Patient adherence to treatment and follow-up
Signs of Improvement
- Gradual reduction in pain
- Decreasing eye redness
- Improved vision clarity
- Reduced light sensitivity