Chorioretinitis
Inflammation of choroid and retina, a vision-threatening posterior uveitis.
Chorioretinitis is an inflammation of the choroid and retina of the eye, classified as a form of posterior uveitis. It is a potentially vision-threatening condition that requires prompt treatment to eliminate inflammation and minimize therapy risks.
- Field
- Ophthalmology
- Known for
- Inflammation of choroid and retina, often caused by toxoplasmosis and cytomegalovirus
- Symptoms
- Floating black spots, blurred vision, pain or redness, sensitivity to light, excessive tearing
- Causes
- Toxoplasmosis, cytomegalovirus, syphilis, sarcoidosis, tuberculosis, Behçet's disease, onchocerciasis, West Nile virus, presumed ocular histoplasmosis syndrome
Lore & Background
Chorioretinitis involves inflammation of the choroid, a thin pigmented vascular coat, and the retina. When only the choroid is inflamed, it is termed choroiditis. The condition is often caused by toxoplasmosis and cytomegalovirus infections, particularly in immunodeficient individuals such as those with HIV/AIDS or on immunosuppressant drugs. Congenital toxoplasmosis can also lead to chorioretinitis along with hydrocephalus and cerebral calcifications.
Reader's Guide
Chorioretinitis is a significant cause of vision loss, particularly in immunocompromised populations. Diagnosis relies on direct examination of active chorioretinal inflammation or detection of leukocytes in the vitreous humor. Treatment typically combines corticosteroids and antibiotics, with specific therapy for underlying causes like HIV. A 2012 Cochrane Review found weak evidence that ivermectin may reduce chorioretinal lesions in onchocercal eye disease, but more research is needed. The condition's association with multiple infectious and inflammatory diseases underscores its importance in differential diagnosis of posterior uveitis.
Did You Know?
- Chorioretinitis is a form of posterior uveitis.
- If only the choroid is inflamed, the condition is termed choroiditis.
- Congenital toxoplasmosis can cause chorioretinitis along with hydrocephalus and cerebral calcifications.
Frequently Asked Questions
Who is Chorioretinitis?
Chorioretinitis is a posterior uveitis that targets the choroid and retina layers of the eye, placing it squarely in the ophthalmology field. It is recognized as a potentially sight-threatening inflammatory condition that demands prompt clinical attention.
What are Chorioretinitis's powers/role?
Its signature 'ability' is driving deep retinal and choroidal inflammation, manifesting as floating dark spots, blurred vision, photophobia, ocular pain, redness, and excessive tearing. It is most frequently triggered by infectious agents such as toxoplasmosis and cytomegalovirus.
Why is Chorioretinitis important?
Because it directly endangers the structures responsible for sight, any delay in diagnosis or treatment risks irreversible vision loss. It also acts as a clinical clue pointing toward systemic infections or autoimmune diseases such as syphilis, sarcoidosis, tuberculosis, or Behçet's disease.
What triggers Chorioretinitis?
A wide cast of culprits can set it off, including toxoplasmosis, cytomegalovirus, syphilis, tuberculosis, sarcoidosis, Behçet's disease, onchocerciasis, West Nile virus, and presumed ocular histoplasmosis syndrome. Identifying the underlying trigger is essential for directing effective, targeted treatment.
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