| Recruiting | N/A | 40 | Europe | Characterization of carotenoid status and plasma levels of oxidative stress markers in patients (case group only), Characterization, evaluation and comparison of macular pigment density | Hospices Civils de Lyon | Primary Intestinal Hypocholesterolemia, Abetalipoproteinemia, Chylomicron Retention Disease | 06/26 | 06/26 | | |