Zofia Michalewska, Janusz Michalewski, Zofia Nawrocka, Jerzy Nawrocki (Lodz, Poland)

Video documents a new theory of idiopathic non-full thickness macular holes based on spectral domain OCT (SD-OCT) observations and clinical appearance before and during surgery. It seems very probable that all these entities are caused by vitreoretinal traction, which produces local internal limiting membrane (ILM) defect in the fovea. These leads to epiretinal membrane (ERM) formation around the ILM defect in the fovea. During the maturation of the membrane different SD-OCT appearances in the fovea may be observed. Different types of healing after surgery are presented. Finally we have to distinguish idiopathic and secondary non-full thickness macular holes. In secondary cases, caused by decreased nutrition from the choroid, we may observe similar SD- OCT appearance, but no ERM is usually present.