How does vitreous hemorrhage happen?

Vitrectomy is not related to trauma, diabetic retinopathy and other factors.

1, trauma

when the eyeball due to blunt or external force, resulting in perforation, blunt trauma, can lead to local vascular rupture, resulting in vitreous hemorrhage.

2, diabetic retinopathy

when diabetes is not well controlled for a long time, can lead to fundus microangiopathy, with the formation of vitreous neovascularization, fragile blood vessels bleeding, can cause vitreous hemorrhage.

3, other factors

cataract surgery, vitrectomy and other processes, due to intraoperative damage to blood vessels, can also cause vitreous hemorrhage; retinochoritis, eye tumors and other diseases are also easy to cause vitreous hemorrhage.