Retina is a very thin membrane at the back of the eye that contains the photoreceptors which convert light into signals that stimulate the brain through the optic nerve.

Retina is firmly attached to the underlying choroidal layer. The most common type of retinal detachment is the rhegmatogenous one, where a small hole in the retina is caused by pulling effect from the vitreous.

This leads to vitreous accumulation under the retina and retinal detachment. Tractional detachment is caused by contraction of membranes formed on the retina in patients with advanced diabetic damage of the eyes. Finally, serous retinal detachment can be caused by intraocular tumors or inflammatory conditions of the retina or the underlying choroid.

Symptoms of retinal detachment include flashing lights, floaters, gradual vision loss or visual field defect.

Treatment includes surgery under local or general anesthetic. The retina is reattached either with an external or an internal approach. The external approach involves suturing of a silicone buckle on the sclera at the level of the retinal break that caused the detachment. The internal approach is called vitrectomy and involves removal of the vitreous, laser treatment or cryotherapy to the retinal breaks and filling of the eyeball with air or gas bubble that gets gradually absorbed.

amflistroidous

Accummulation of fluid under the retina leading to a retinal detachment.