Prescreening Study to Identify Potential Participants With ABCA4-related Retinopathy for ACDN-01 Clinical Trials

Key Inclusion Criteria: * Presence of mutations in the ABCA4 gene * ABCA4 retinopathy phenotype (Stargardt disease type 1 or cone-rod dystrophy) Key Exclusion Criteria: * The presence of pathogenic or likely pathogenic mutations in other genes known to cause cone-rod dystrophy or Stargardt maculopathy * Retinal disease other than ABCA4-related retinopathy * Presence of a medical condition (systemic or ophthalmic), psychiatric condition, including substance abuse disorder, or physical examination or laboratory finding that may in the opinion of the principal investigator and sponsor preclude…