User:Mr. Ibrahem/Posterior vitreous detachment

Posterior vitreous detachment (PVD) is a condition of the eye in which the vitreous separates from the retina. Symptoms include floaters and flashes of light in the peripheral vision. Pain does not occur. This generally resolves over a few months. Complications may include retinal tear, retinal detachment, macular hole, macular pucker, and vitreous bleed.

Risk factors include being nearsighted. Episodes may be triggered by cataract surgery, trauma, uveitis, and laser capsulotomy. The underlying mechanism involves age related softening of the vitreous. Diagnosis is by dilated eye exam. Other measures used may include ultrasound and optical coherence tomography.

In most cases no specific treatment is required. Follow up may be recommended in 2 to 4 weeks to rule out complications. Outcomes are usually good. If the condition causes significant problems surgery, known as a vitrectomy, may be tried.

Posterior vitreous detachment becomes common as people age. About half of people over the age of 50 are affected. Women are more commonly affected at a younger age. It was first described in 1856 by Muller and 1875 by Briere.