A torn retina is a serious problem that occurs when the retina has a hole or tear in it. A torn retina often leads to a more serious condition called a detached retina when left untreated. This is where the retina is lifted away from the back of the eye. A torn retina must be treated right away to avoid further vision problems.
When the retina tears, you may suddenly see flashes of light, an increase in floaters, shadows, spider webs, or a veil or curtain coming across the vision. Sometimes blood can leak into the vitreous. This is called a vitreous hemorrhage, and it can cause a large number of floaters or dark vision.
With a torn retina, fluid may leak through the hole and detach the retina. This is a serious problem must be treated right away or you could lose vision.
To diagnose a torn retina, the doctor will put drops in your eyes to dilate the pupil and will look through a special lens to see any changes inside the eye. This is the best way to see if you have a retinal tear or early retinal detachment. The doctor will use a laser to correct this by sealing the retina back together or he will refer you to a Retina Specialist.