Scleritis

Symptoms

Common signs and symptoms of Scleritis include:

Severe, deep, boring eye pain that may worsen at night

Intense red or purple discoloration of the white part of the eye

Pain that radiates to the forehead, temple, or jaw

Extreme sensitivity to light (photophobia)

Excessive tearing or watery eyes

Blurred or decreased vision

Pain that worsens with eye movement

Feeling like something is pressing deep into the eye

Headaches, especially around the eye area

Nausea or general feeling of illness with severe pain

Double vision in some cases

Dark or bluish discoloration of the sclera

When to see a doctor

If you experience severe or worsening symptoms, seek immediate medical attention. Always consult with a healthcare professional for proper diagnosis and treatment.

Causes & Risk Factors

Several factors can contribute to Scleritis.

Scleritis develops when the immune system mistakenly attacks the sclera, the eye's protective outer layer.

Scleritis develops when the immune system mistakenly attacks the sclera, the eye's protective outer layer. In many cases, this inflammatory response occurs as part of a broader autoimmune condition. Rheumatoid arthritis accounts for the largest percentage of associated systemic diseases, followed by other connective tissue disorders like lupus, polyarteritis nodosa, and granulomatosis with polyangiitis. These conditions create chronic inflammation throughout the body that can specifically target the eye's tissues.

Infectious causes represent another important category, though they're less common than autoimmune triggers.

Infectious causes represent another important category, though they're less common than autoimmune triggers. Bacterial, viral, fungal, or parasitic infections can directly invade the sclera or spread from nearby structures. Herpes zoster, tuberculosis, and syphilis are among the infectious agents that can cause scleritis. Previous eye surgery or trauma can also trigger inflammatory responses that lead to scleritis, particularly if there's been damage to the scleral tissue.

In roughly 40-50% of cases, doctors cannot identify a specific underlying cause, classifying these as idiopathic scleritis.

In roughly 40-50% of cases, doctors cannot identify a specific underlying cause, classifying these as idiopathic scleritis. However, even in these seemingly isolated cases, patients may develop systemic autoimmune conditions later. The inflammatory process involves complex interactions between various immune cells and inflammatory mediators that damage the collagen structure of the sclera, leading to the characteristic pain, redness, and potential complications of the condition.

Risk Factors

Having rheumatoid arthritis or other autoimmune diseases
Being a woman between ages 30-60
Previous history of eye trauma or surgery
Having inflammatory bowel disease
History of herpes zoster (shingles) affecting the eye
Systemic lupus erythematosus
Granulomatosis with polyangiitis (Wegener's disease)
Polyarteritis nodosa
Taking certain medications that affect immune function
Previous episodes of scleritis or episcleritis

Diagnosis

How healthcare professionals diagnose Scleritis:

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Diagnosing scleritis begins with a comprehensive eye examination by an ophthalmologist, who will carefully assess the pattern and depth of eye redness and inflammation.
Diagnosing scleritis begins with a comprehensive eye examination by an ophthalmologist, who will carefully assess the pattern and depth of eye redness and inflammation. The doctor uses a slit-lamp microscope to examine the eye's structures in detail, looking for the characteristic deep, violaceous (purple-red) discoloration that distinguishes scleritis from milder conditions like episcleritis. They may also apply gentle pressure to the eye to assess pain response and examine how the superficial blood vessels move over the deeper inflamed tissues.
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Several tests help confirm the diagnosis and rule out other conditions.
Several tests help confirm the diagnosis and rule out other conditions. B-scan ultrasonography can reveal thickening of the scleral wall and detect any fluid accumulation behind the eye. Blood tests play a crucial role in identifying underlying autoimmune conditions, including complete blood count, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), rheumatoid factor, and antinuclear antibodies (ANA). Additional specialized tests may include anti-neutrophil cytoplasmic antibodies (ANCA) and tests for specific infections if suspected.
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The differential diagnosis includes several other eye conditions that can cause redness and pain.
The differential diagnosis includes several other eye conditions that can cause redness and pain. Episcleritis appears more superficial with brighter red coloration and typically causes much less pain. Conjunctivitis usually involves discharge and affects the inner eyelid surfaces. Acute angle-closure glaucoma can cause severe eye pain but typically presents with a dilated pupil and elevated eye pressure. Orbital cellulitis involves swelling of the eyelids and surrounding tissues, while uveitis primarily affects the interior structures of the eye rather than the outer scleral layer.

Complications

Scleritis can lead to several serious complications that threaten both eye structure and vision.
Scleral thinning represents one of the most dangerous outcomes, occurring when chronic inflammation breaks down the collagen fibers that give the sclera its strength.
This thinning creates dark, bluish areas where the underlying uveal tissue shows through the weakened scleral wall.
In extreme cases, the eye wall can actually perforate, leading to loss of eye contents and requiring emergency surgical repair.
Other significant complications include secondary glaucoma, where inflammation disrupts normal fluid drainage from the eye, causing dangerous increases in eye pressure.
Cataracts can develop from chronic inflammation or as a side effect of corticosteroid treatment.
Some patients experience uveitis, where inflammation spreads to involve the interior structures of the eye, potentially causing additional vision problems.
Corneal involvement can occur in adjacent areas, leading to corneal thinning, ulceration, or perforation.
These complications explain why aggressive treatment is necessary even when it involves powerful medications with their own potential side effects.

Prevention

Preventing scleritis focuses primarily on managing underlying autoimmune conditions that increase risk for this serious eye inflammation.
People diagnosed with rheumatoid arthritis, lupus, or other systemic inflammatory diseases should work closely with their rheumatologists to maintain good disease control through appropriate medications and monitoring.
Consistent use of disease-modifying antirheumatic drugs (DMARDs) or biologic therapies as prescribed can help prevent inflammatory flares that might affect the eyes.
Regular eye examinations become especially important for anyone with autoimmune conditions, even if they haven't experienced eye symptoms.
Early detection of eye inflammation allows for prompt treatment before serious complications develop.
People should also protect their eyes from trauma through appropriate safety measures, such as wearing protective eyewear during sports or work activities that pose injury risks.
Prompt treatment of eye infections and proper wound care after eye surgery or injury can help prevent inflammatory complications.
While you can't prevent all cases of scleritis, staying alert to warning signs allows for early intervention.
Anyone experiencing severe eye pain, particularly the characteristic deep, boring sensation, should seek immediate ophthalmologic evaluation rather than waiting to see if symptoms resolve on their own.
The sooner treatment begins, the better the chances of preserving vision and preventing serious complications.

Treatment Approaches

Treatment of scleritis requires aggressive anti-inflammatory therapy to control the immune system's attack on the sclera and prevent vision-threatening complications.

Treatment of scleritis requires aggressive anti-inflammatory therapy to control the immune system's attack on the sclera and prevent vision-threatening complications. Nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or indomethacin may provide some relief in very mild cases, but most patients require systemic corticosteroids as first-line therapy. Oral prednisone typically starts at higher doses (1-1.5 mg per kilogram of body weight daily) and gradually tapers down over several weeks to months as inflammation subsides.

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When corticosteroids alone aren't sufficient or cause unacceptable side effects, immunosuppressive medications become necessary.

When corticosteroids alone aren't sufficient or cause unacceptable side effects, immunosuppressive medications become necessary. Methotrexate is often the first choice among steroid-sparing agents, followed by options like azathioprine, mycophenolate mofetil, or cyclosporine. For severe, necrotizing scleritis or cases that don't respond to conventional treatment, biologic therapies such as rituximab, infliximab, or adalimumab may be required. These powerful medications specifically target certain parts of the immune system responsible for the inflammatory response.

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Topical treatments play a supportive role but rarely work alone for true scleritis.

Topical treatments play a supportive role but rarely work alone for true scleritis. Topical corticosteroids may help reduce surface inflammation, while cycloplegic drops can provide pain relief by relaxing the muscles inside the eye. Lubricating eye drops help manage secondary dry eye symptoms. Pain management often requires systemic approaches since the deep, boring pain of scleritis typically doesn't respond well to topical anesthetics.

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Surgical intervention becomes necessary in cases where the sclera has thinned dangerously or perforated.

Surgical intervention becomes necessary in cases where the sclera has thinned dangerously or perforated. Scleral grafting procedures use donor tissue or synthetic materials to reinforce weakened areas and prevent rupture of the eye. Researchers are investigating new targeted therapies, including specific cytokine inhibitors and novel immunomodulatory agents that may offer more precise treatment with fewer side effects than current broad-spectrum immunosuppressive drugs.

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Living With Scleritis

Managing life with scleritis requires a comprehensive approach that addresses both the eye condition and any underlying systemic disease. Pain management becomes a daily consideration, as the characteristic deep, boring pain can significantly impact sleep, work, and daily activities. Many patients find that pain is worse at night or with eye movement, so developing strategies for comfortable sleep positioning and taking prescribed pain medications appropriately helps maintain quality of life. Creating a dimly lit environment at home can help manage light sensitivity during flares.

Regular follow-up appointments with both an ophthalmologist and rheumatologist (if systemic disease is present) are essential for monitoring treatment response and adjusting medications.Regular follow-up appointments with both an ophthalmologist and rheumatologist (if systemic disease is present) are essential for monitoring treatment response and adjusting medications. Patients should learn to recognize early warning signs of flares - increased pain, redness, or vision changes - and have a clear plan for rapid access to medical care. Keeping a symptom diary can help identify patterns or triggers that worsen inflammation.

Practical daily strategies include: - Using preservative-free artificial tears rPractical daily strategies include: - Using preservative-free artificial tears regularly to combat dry eye symptoms - Wearing sunglasses outdoors and in bright indoor environments - Taking medications exactly as prescribed, even when feeling better - Avoiding eye rubbing, which can worsen inflammation - Getting adequate sleep and managing stress, as both can affect autoimmune conditions - Staying up to date with vaccinations, though live vaccines may be contraindicated with immunosuppressive treatments

Emotional support plays an important role in managing a chronic condition that can affect vision and requires long-term treatment with powerful medications.Emotional support plays an important role in managing a chronic condition that can affect vision and requires long-term treatment with powerful medications. Connecting with support groups, either locally or online, can provide valuable insights from others managing similar challenges. Many patients benefit from counseling to develop coping strategies for dealing with chronic pain and the anxiety that can accompany a condition affecting such a vital sense as vision.

Latest Medical Developments

Latest medical developments are being researched.

Frequently Asked Questions

How is scleritis different from pink eye or other common eye problems?

Scleritis causes much more severe, deep pain compared to pink eye, which typically feels scratchy or gritty. The redness in scleritis appears darker and more purplish, while pink eye shows brighter red coloration. Scleritis pain often radiates to the head and face, while pink eye rarely causes significant pain.

Can scleritis cause permanent vision loss?

Yes, scleritis can cause permanent vision loss if not treated promptly and appropriately. Complications like scleral perforation, secondary glaucoma, or corneal damage can result in irreversible vision problems. This is why aggressive treatment is necessary even though it requires strong medications.

Will I need to take medications for the rest of my life?

Treatment duration varies depending on whether you have underlying autoimmune disease and how well your scleritis responds to therapy. Some people can eventually stop medications after the inflammation is controlled, while others with systemic conditions may need long-term treatment to prevent recurrences.

Is scleritis contagious?

No, scleritis itself is not contagious since it's primarily an autoimmune inflammatory condition. Even when infection triggers scleritis, the scleritis inflammation itself cannot spread from person to person. Family members don't need to worry about catching it through normal contact.

Can stress make scleritis worse?

Stress can potentially trigger flares of autoimmune conditions that underlie scleritis, though direct evidence linking stress to scleritis flares is limited. Managing stress through relaxation techniques, adequate sleep, and stress reduction strategies may help with overall autoimmune disease control.

Are there any activities I should avoid with scleritis?

During active inflammation, avoid activities that strain the eyes or increase eye pressure, such as heavy lifting or high-impact exercise. Protect your eyes from injury since the inflamed sclera may be more fragile. Swimming in chlorinated pools might irritate already sensitive eyes.

How long does it take for scleritis treatment to work?

Initial improvement in pain and redness typically occurs within days to weeks of starting corticosteroids, but complete healing can take months. Some patients need several medication adjustments before finding the most effective treatment regimen for their specific case.

Can scleritis affect both eyes at the same time?

Yes, scleritis can affect both eyes simultaneously, especially in cases associated with systemic autoimmune diseases. However, it more commonly affects one eye at a time, and the severity may differ between eyes if both are involved.

What should I do if my eye pain suddenly gets much worse?

Sudden worsening of eye pain, especially if accompanied by vision loss, nausea, or seeing halos around lights, requires immediate medical attention. These symptoms could indicate complications like scleral perforation or acute glaucoma that need emergency treatment.

Can pregnancy affect scleritis or its treatment?

Pregnancy can influence autoimmune conditions and may affect scleritis activity. Many medications used to treat scleritis require careful consideration during pregnancy, so work closely with both your ophthalmologist and obstetrician to adjust treatment safely for both you and your baby.

Update History

Mar 23, 2026v1.0.0

Published by DiseaseDirectory