This subject was implanted with the argus ii device on (b)(6) 2008 as part of a clinical trial.This subject had an epiretinal membrane diagnosed in (b)(6) 2009 that was stable for several years and did not require any intervention.However, following a fall the patient experienced in early 2013, an eye exam on (b)(6) 2013 revealed that the epiretinal membrane had separated from the retina, but was still held in place by the tack.The surgeon operated on this subject on (b)(6) 2013 to remove the epiretinal membrane, which he thought may improve the apposition of the array to the retina.As of (b)(6) there was evidence of regrowth of the membrane and the surgeon determined this was a permanent adverse event.There was no defect or malfunction of the device associated with this event.
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