What causes a chorioretinal scar?
Chorioretinal scarring is in a high percentage of cases due to congenital infection with Toxoplasma gondii, Herpes simplex virus, Lymphocytic choriomeningitis virus and West-Nile virus.
What is focal chorioretinal inflammation?
Chorioretinitis. This is an inflammatory and exudative condition of the choroid and the retina. When the choroid alone is involved it is called choroiditis. It may be congenital or acquired at any age – particularly in the immunocompromised where it may be the ocular manifestation of severe systemic disease.
What does chorioretinitis look like?
In 70 to 80% of cases, it can occur as a unilateral focal chorioretinal lesion. [20] In the active phase, it occurs as necrotizing chorioretinitis with overlying vitritis. On fundoscopy, it can appear as a yellow-white lesion with indistinct margins, often described as a “headlight in a fog” appearance.
What are Chorioretinal lesions?
In summary, chorioretinal lesions were found not to be uncommon among patients with CGD. The lesions included RPE atrophy or pigment clumping and are similar to previous descriptions. We also found ischemia of the peripheral retina, neovascularization, and macular edema, which had not been previously reported.
What is Chorioretinal atrophy?
Chorioretinal Atrophy is a condition of the eye where both the choroid and retina are damaged. This causes them to wither away and stop working.
How does chorioretinitis affect vision?
Chorioretinitis may cause: Pain or redness in the eye. Blurred vision, or seeing floating objects in your vision. Sensitivity to light or glare.
What is diffuse chorioretinal atrophy?
Diffuse chorioretinal atrophy is a vision-threatening complication of high myopia where best-corrected visual acuity gradually worsens with foveal involvement. East Asia is experiencing an unprecedented rise in high myopia, which is defined by a refractive error of worse than −6 diopters (D).
Where does a chorioretinal scar occur in the eye?
Answer: A chorioretinal scar is an area of pigmentary change or fibrosis that is located on the inside surface of the eye. These may be the result of an old infection or injury, but in some cases we do not know the source.
How to tell if you have choroidal sclera?
Scars from chorioretinitis are sharply demarcated and yellowish-white when the underlying sclera shines through. If remnants of the choroid are present, a few choroidal vessels will be visible. Lesions may include small round spots, larger scars, and broad defects.
What happens to the retinochoroidal tissue with chorioretinitis?
Severe visual loss may occur among patients with infectious posterior uveitis and chorioretinitis, especially if there is a delay in the diagnosis. A number of infectious agents can affect the retinochoroidal tissue resulting in intraocular inflammation.
Which is an example of an infectious chorioretinal disease?
In the index chapter, various infectious chorioretinal diseases such as tuberculosis and toxoplasmosis, to name a few, are described with an emphasis on their clinical and imaging features. Severe visual loss may occur among patients with infectious posterior uveitis and chorioretinitis, especially if there is a delay in the diagnosis.