Differentiation of premacular hemorrhages with niveau formation

e present three anatomical forms of premacular hemorrhage with niveau formation: hemorrhage in posterior precortical vitreous pocket (intrapocket hemorrhage), sub-internal limiting membrane (ILM) hemorrhage, and premacular retrocortical hemorrhage. Niveau formation is the formation of a horizonal boundary between fluid and blood cells when they accumulate in a closed space, because blood cells with higher specific gravity settle in a standing position. the three forms of hemorrhage the of premacular and selecting treatment.