Amaurosis FugaxBlindnessLeber Congenital AmaurosisCarotid Artery DiseasesIschemic Attack, TransientRetinal Artery OcclusionCarotid Artery, InternalCarotid StenosisEndarterectomy, Carotidcis-trans-IsomerasesEndarterectomyAngiographyRetinal ArteryConstriction, PathologicRemission, SpontaneousOptic Atrophy, Hereditary, LeberCerebrovascular DisordersCarotid ArteriesUltrasonography, Doppler, DuplexEye ProteinsOptic Atrophies, HereditaryRetinal DegenerationRectal DiseasesPostoperative ComplicationsRetinitis PigmentosaPhotoreceptor Connecting CiliumRetinal DystrophiesRetrospective StudiesElectroretinography