CD34 and Schnyder corneal dystrophy: Children and adolescents with high-risk SCD who received parental HISCT utilizing CD34<sup>+</sup> enrichment and mononuclear cell (T-cell) addback following myeloimmunoablative conditioning received cognitive evaluations and neuroimaging at three time points: pre-transplant, 1 and 2 years post-transplant.<h4>Results</h4>Nineteen participants (13.1 ± 1.2 years [3.3-20.0]) received HISCT.