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Internal scar tissue is formed as a result of some surgical procedures, such as hartmannâs procedure, injury, inflammation or infection. The medical term for internal scarring is âadhesionâ. It is different from external scar tissue in the way that it forms. As it can cause tethers or a biological barrier, and result in pain and complications. It is caused by your bodyâs own healing process.
However, sometimes when the vitreous pulls away from the retina, damage occurs to the inner surface of the retina. This sometimes forms scar tissue, or an epi-retinal membrane, on the inner surface of the retina. This scar tissue sometimes causes the retina to get distorted or wrinkled (or âpuckerâ).