Scleritis

Scleritis is an inflammatory disorder characterized by damage to the sclera, the outer layer of the eye. The condition may be isolated or associated with systemic diseases such as rheumatoid arthritis, ankylosing spondylitis, or systemic lupus erythematosus. The clinical presentation of scleritis can range from mild discomfort to severe pain and potential deterioration in visual function. A distinction is made between anterior and posterior scleritis, which may present with different symptoms such as redness, soreness, lacrimation, and vision changes. Given the impact on patients’ quality of life, early diagnosis and appropriate treatment are key aspects of managing this disorder.

History of the disease and interesting historical facts

Scleritis has been described in medical literature for centuries, with references to the condition in the works of famous physicians and anatomists. In ancient Greek medicine, for example, observation of eye diseases was already in place, but a precise understanding of the pathophysiology of scleritis came with the development of anatomy and ophthalmology in the 16th and 17th centuries. Interestingly, the treatments for scleritis were the same as for other inflammatory diseases, such as bloodletting and anti-inflammatory balms. In the 20th century, with the accumulation of knowledge about systemic inflammatory diseases and immune-mediated processes, physicians began to understand the relationship between systemic diseases and scleritis, which contributed to the development of more effective treatments.

Epidemiology

The epidemiology of scleritis shows that the disease occurs in 5-10% patients with systemic inflammatory diseases. Studies confirm that scleritis is more common in women than in men, with a ratio of 3:1. The incidence is highest in the 20-50 age group, which may be due to peak periods of active immune response. The prevalence of scleritis may vary in different populations, indicating the influence of genetic and environmental factors. For example, one study conducted at US clinics found that previous systemic diseases increase the risk of scleritis by 20-30%.

Genetic predisposition to this disease

Studies show that genetic predisposition plays an important role in the development of scleritis. In particular, associations with certain genes associated with the immune response have been identified. The most significant mutations are observed in genes encoding cytokines such as TNF-α, IL-1 and IL-6. These molecules play a key role in inflammatory processes and immune regulation. In addition, the involvement of HLA types such as HLA-B27 has also been identified in a number of studies as a predisposing genetic factor for patients with ankylosing spondylitis, which may be accompanied by scleritis.

Risk factors for the development of this disease

Risk factors that contribute to the development of scleritis are varied and may include both physical and chemical factors. These include:

• Systemic diseases (rheumatoid arthritis, systemic lupus erythematosus, vasculitis);
• Infectious agents (viruses, bacteria);
• Environmental factors (influence of toxic substances, ultraviolet radiation);
• History of eye trauma;
• Occupational hazards (long-term exposure to chemicals, dust).

These factors can significantly increase the likelihood of developing scleritis, often interacting with each other in the context of complex immune responses.

Diagnosis of this disease

Diagnosis of scleritis involves a number of measures aimed at identifying characteristic symptoms and excluding other diseases. The main symptoms include:

• Pain in the eyes, often radiating to the temporal region;
• Redness of the sclera;
• Foreign body sensation;
• Lacrimation and photophobia;
• Visual impairment (in more severe cases).

Laboratory tests usually include a complete blood count with inflammatory markers such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR). Radiological examinations may include an ultrasound of the eye or an MRI to examine the tissue structure in detail and identify possible damage. Differential diagnosis is very important and is performed to exclude conditions such as episcleritis, uveitis, or infectious processes affecting the ocular tissues.

Treatment

Treatment of scleritis should be comprehensive and based on the severity of the disease and its etiology. In general, several approaches can be distinguished:

• General treatment: lifestyle modification, avoidance of triggering factors;
• Pharmacological treatment: non-steroidal anti-inflammatory drugs (NSAIDs) to reduce pain and inflammation, corticosteroids in severe forms;
• Surgical treatment: In rare cases, surgery may be required for complications such as scleral perforation;
• Other treatments: immunosuppressive therapy in the presence of systemic diseases or severe forms of scleritis.

An important aspect is an individual approach to each patient depending on his medical history and current health status.

List of medications used to treat this disease

Among the main medications used in the treatment of scleritis, the following can be distinguished:

• Ibuprofen (NSAID);
• Naproxen (NSAID);
• Prednisolone (corticosteroid).
• Methotrexate (immunosuppressant);
• Adalimumab (monoclonal antibody).

The above list of medications may be modified depending on the individual characteristics of the patient.

Disease monitoring

Monitoring of patients with scleritis should be regular and multi-level. Control stages include:

• Regular eye examinations to assess the condition of the eyes;
• Laboratory tests for levels of inflammatory markers;
• Monitoring the general condition of the patient and the dynamics of the disease.

The prognosis with adequate treatment is often favorable, but complications such as the development of glaucoma, cataracts, or even vision loss in cases of severe scleritis are possible.

Age-related features of the disease

Depending on the age group, the disease may have different manifestations. In young patients, scleritis often develops against the background of active systemic diseases, while in older patients there may be a connection with degenerative changes. In children, scleritis is often part of a wider spectrum of juvenile arthritis. Note that in older people, the clinical picture may be less vivid, which complicates diagnosis.

Questions and Answers

• What is scleritis? Scleritis is an inflammatory condition of the sclera that causes pain, redness, and possible vision problems.
• What are the main symptoms of scleritis? Symptoms include eye pain, redness, tearing, photophobia and visual disturbances.
• Is it possible to treat scleritis at home? Treatment of scleritis requires medical supervision and should be carried out under the supervision of a physician, as this disease can lead to serious complications.
• What are the risk factors for developing scleritis? Risk factors include systemic diseases, trauma, infectious processes, and chemical exposure.
• How is scleritis diagnosed? Diagnosis includes ophthalmological examination, laboratory tests and, if necessary, radiological methods.