Related Experiment Video
Updated: Apr 15, 2026
06:38
Induction of Ocular Surface Inflammation and Collection of Involved Tissues
Published on: August 4, 2022
3.0K
IgG4-related ophthalmic disease.
1Departments of Neurology and Ophthalmology, SUNY Upstate Medical University, Syracuse, NY, USA.
Summary
Immunoglobulin G4-related disease (IgG4-RD) is a condition causing inflammation and tumor-like growths. Diagnosis involves clinical, lab, imaging, and pathology findings, with treatment typically using corticosteroids and immunosuppressants.
Area of Science:
- Immunology
- Rheumatology
- Pathology
Background:
- Immunoglobulin G4-related disease (IgG4-RD) is a systemic fibro-inflammatory condition.
- It is characterized by IgG4-positive plasma cell infiltration and can affect nearly any organ.
- Ophthalmic manifestations include dacryoadenitis, myositis, and cranial neuropathies secondary to hypophysitis or pachymeningitis.
Purpose of the Study:
- To provide a comprehensive overview of IgG4-related disease, focusing on its ophthalmic manifestations.
- To outline the diagnostic criteria and histopathological features of IgG4-RD.
- To discuss current treatment strategies for IgG4-related disease.
Main Methods:
- Review of clinical presentations, diagnostic workup, and treatment outcomes for IgG4-related disease.
- Analysis of histopathological and immunohistochemical findings characteristic of IgG4-RD.
- Synthesis of current literature on IgG4-related ophthalmic disease.
Main Results:
- IgG4-RD presents with diverse clinical scenarios, often mimicking tumors.
- Diagnosis relies on a combination of clinical, serological, radiological, and histopathological evidence.
- Elevated serum IgG4 levels and IgG4-rich plasma cell infiltrates are key indicators.
Conclusions:
- IgG4-related disease is a multi-system disorder requiring a multidisciplinary diagnostic approach.
- Early diagnosis and treatment are crucial for managing IgG4-related disease and preventing organ damage.
- Corticosteroids and long-term immunosuppressive therapy remain the mainstay of treatment.
Related Concept Videos
01:25Glaucoma: Overview
1.7K
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
1.7K
01:27Open Angle Glaucoma: Treatment
1.1K
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
1.1K
01:22Photoreceptors and Visual Pathways
11.2K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
11.2K
01:28Angle Closure Glaucoma: Treatment
1.7K
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
1.7K
01:23Ophthalmic Drug Delivery Systems
247
Ophthalmic drug delivery faces major limitations due to poor absorption across the corneal membrane. This process is primarily driven by diffusion and is influenced by two main factors: the physicochemical properties of the drug and tear drainage. Most ophthalmic drugs, such as pilocarpine, epinephrine, atropine, and local anesthetics, are weak bases. They are typically formulated at an acidic pH to enhance chemical stability. However, this leads to high ionization, reducing their ability to...
247