![]() ![]() This curtain, which can sometimes be seen to billow like a sail in the wind, is actually the detached retina tissue floating in the vitreous cavity. ![]() flashes and floaters however, as the detachment progresses, a dark, opaque moon-shaped shadow or curtain will appear from one side of your vision. The initial symptoms of a retinal detachment are the same as a retinal tear or a posterior vitreous detachment, i.e. Once a small amount of fluid gets underneath the retina, the “seal” is broken and the dissecting fluid can spread rapidly. The rest of the retina is attached to the wall of the eye in a fashion similar to a suction cup. Similar to the posterior vitreous, the retina is only firmly attached to the wall of the eye at the optic nerve, and at the far peripheral edge of the retina. Rhegmatogenous retinal detachments occur when fluid from the vitreous cavity flows through a retinal tear and dissects underneath the retina, thus raising it up off the wall of the eye. ![]() The most common type of retinal detachment is called a rhegmatogenous retinal detachment. It is therefore imperative that a retinal detachment be repaired in order to prevent permanent loss of vision in the affected eye. When this separation occurs, the cells of the nerve tissue are isolated from their supplies of nourishment, will deteriorate, and eventually die. A similar process using a transcleral diode laser can also achieve the same result.įor Spanish version, click here › What Is a Retinal Detachment?Ī retinal detachment is a separation of the nerve tissue of the retina from the wall of the eye. This freezing metal probe, called a cryoprobe, is placed against the wall of the eye underneath the tear, where the local inflammation caused by the freezing creates the desired adhesion. from a dense cataract or from blood in the vitreous cavity, the adhesion is created by using a metal probe cooled to -20☌. Sometimes if the view of the retina is so poor, i.e. The usual way such an adhesion is formed is by creating a circle of small scars around the tear with a laser. The object of treatment for a retinal tear is to create a firm adhesion, called a retinopexy, between the retina and the wall of the eye so that the liquefied vitreous cannot pass through the tear and then dissect underneath the retina and cause a retinal detachment. How Are Retinal Tears Treated?Īll tears that are new and all tears, new or old, that are associated with sudden new symptoms of flashes and/or floaters require prompt treatment. If a retinal tear occurs in the location of a retinal blood vessel, the blood from such a torn vessel leads to a showering of new floaters (vitreous hemorrhage). This tugging is the cause of flashes, and if the tugging is strong enough a retinal tear may develop. The vitreous jelly inside the eye sticks more firmly at the edge of the retina and “tugs” while it is being peeled off. Tears are seen in two forms – a triangular horseshoe tear and a circular tear that often has a small divot of retina floating over the circle (operculated hole). Retinal tears typically occur at the thin edge of the retina. Retinal Tears & Detachments What is a Retinal Tear?Ī retinal tear is exactly what it sounds like – a tear in the fabric of nerve tissue that lines the inside of the eye, called the retina. ![]()
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