I feel something black floating in front of my eyes. What's going on?

The feeling of black things floating in front of the eyes may be caused by watching white objects, uveitis, retinal tears and other reasons.

1. Watching white objects for a

long time, the human body needs a short time for light signals to enter the brain, causing visual persistence, resulting in physiological floaters.

2. Uveitis

pathogen infection can cause uveitis, the patient's uveal may appear inflammatory lesions, inflammatory stimulation can form inflammatory exudates, so that it appears in front of the shadow symptoms.

3. Retinal tears

Retinal traction patients retina can form retinal tears, vascular damage may occur, blood exudation can form hematoma, this time will also appear the symptoms.