Retinal detachment occurs when the retina separates from the back of the inside of the eye, rather like wallpaper peeling off a damp wall. Most people will experience warning signs as sudden appearance of floaters or a cobweb effect of lots of little floaters.
These signs indicate their retina is at risk of detaching before they lose their sight. Without prompt treatment, it will lead to blindness in the affected eye.
PVD (Posterior Vitreous Detachment)
The vitreous is a transparent gel which fills the back of the eyeball. With age, the vitreous gel shrinks and separates itself from part of the retina. Symptoms can be black floaters (e.g. little dots, lines or circles) in the vision.
There is no treatment for posterior vitreous detachment. However, as the symptoms are linked to those of a retinal detachment, a clinical examination by an Ophthalmologist is advised within a few days of the onset of symptoms.
The vitreous humour is normally a clear, transparent jelly-like substance inside the eye. It has no real function other than providing volume to the eye. A vitrectomy is a surgical procedure to remove the vitreous humour and is often part of another operation. For example, if you need a surgical repair to the retina because it has a tear or hole in it, a vitrectomy is needed for the surgery to take place.