The EFEMP1 gene that encodes for F3 is one of many genes included within retinal dystrophy panels (https://www.ncbi.nlm.nih.gov/gtr/tests/522537/, https://www.egl-eurofins.com/tests/?testid=MM239) which are typically prescribed for patients with unknown ocular diseases. The gene discussed is EFEMP1; the disease is inherited retinal dystrophy.