Diabetic Macular Edema (DME) is an accumulation of fluid in the macula due to leaking blood vessels in the retina, the part of the eye responsible for detailed central vision, resulting in vision impairment. Left untreated, these blood vessels begin to build up pressure in the eye and leak fluid causing DME.
Vitreomacular traction (VMT) syndrome is a potentially visually significant disorder of the vitreoretinal interface characterized by an incomplete posterior vitreous detachment with the persistently adherent vitreous exerting tractional pull on the macula and resulting in morphologic alterations and consequent decline of visual function.
Retinal tear. A retinal tear occurs when the vitreous shrinks and tugs on the retina with enough traction to cause a break in the tissue. It’s often accompanied by the sudden onset of symptoms such as floaters and flashing lights.
Retinal detachment. A retinal detachment is defined by the presence of fluid under the retina. This usually occurs when fluid passes through a retinal tear, causing the retina to lift away from the underlying tissue layers.
Macular hole. A macular hole is a small defect in the center of the retina at the macula. The hole may develop from abnormal traction between the retina and the vitreous, or it may follow an injury to the eye.