Laboratory	Test Method	Prenatal	Carrier *
National Institutes of Health, Ocular Genetics Laboratory - Bethesda, MD, USA	• Sequence analysis of the entire coding region
Oregon Health and Science University, Casey Eye Institute Molecular Diagnostic Laboratory - Portland, OR, USA	• Sequence analysis of the entire coding region • Deletion/duplication analysis
Radboud University Nijmegen Medical Centre, Genome Diagnostics Nijmegen - Nijmegen, Netherlands	• Sequence analysis of the entire coding region

^* Carrier column is relevant to autosomal recessive and X-linked inheritance; column will be blank when it is not relevant (e.g. autosomal dominant inheritance, microdeletions/duplications) and/or is not offered by the lab.