Chorioretinitis is the inflammation of the choroidea (choroid), layers of blood vessels beneath the retina. After the inflammation is cured, the scars remain on the choroid and retina.
In most cases the real cause of this disorder cannot be detected. Some cases are the result of a microbial infection before birth. In a small percentage of children, this disorder is the result of an infection with a worm-like microbe that entered the eye as the child touched the ground that the dog or, more rarely, the cat had infected and then passed the infection into the mouth.
Inflammation causes blurred vision. The condition is painless. If you feel any blur, contact your doctor immediately who will send you to a blood test and an X-ray scan to find out the root cause.
The condition is treated with corticosteroid drugs to calm the inflammation and clear the vision. In severe cases, when the cause is not an infection, immunosuppressive agents may also be provided.
If the scars of choroid and retina appear far from the macula lutee, near the front part of the eye, there will be some loss of external visual field, which the patient may not notice. However, if the central choroid and retina are affected, on the back of the eye, there will be a greater or lesser degree of direct vision loss.