Persistent Pupillary Membrane (PPM) on Slit Lamp Ocular Examination This membrane would be a remainder of the tunica vasculosa lentis, which generally disappears completely by the fifth week of gestation, from 4 to 8 weeks. These are rarely large enough to cause low vision or symptoms. Dr. Sebastian Vega @oftalmopo #PPM #Persistent #Pupillary #Membrane #Pupil #Ocular #PhysicalExam #clinical #video #ophthalmology #SlitLamp
