Retinal detachment is a very serious condition which can cause severe or even permanent vision loss. It occurs when the retina becomes separated from the underlying supportive tissues, which prevents the retina from functioning properly. Some common symptoms may include: spots, floaters, flashes of light, poorer vision or a shadow appearance across the top of the eye. No pain is associated with retinal detachment. If you notice any of the above symptoms or believe you have a detached retina it is vitally important to seek ophthalmic care immediately to prevent permanent vision loss.