Here, I'll show you a diagram of the human eye. The initial stage of retinopathy where aneurysms appear in vessels on the retina. These smaller vessels are incompletely formed and poorly supported by surrounding tissues. Eventually, the vessels invade the vitreous space against the retina. The jelly-like vitreous substance rubs excessively on the vessels, inducing ruptures or tears.
Blood fills the spaces of the eye and the patient goes temporarily blind.
Blood then clots and may form a scar, causing the retina to tear loose, which we call retinal detachment. Permanent vision loss is caused by retinal detachment. The second stage of retinopathy where small vessels emerge on the retina and burst due to friction with the vitreous. Jelly-like substance that fills the space within the eyeball. No, some diabetics may get glaucoma or cataracts.