Figure 3. Dark adaptometry (lower left panel), optical coherence tomography (upper left panel), and multifocal electroretinography (upper right panel) in the male patient with a tapetal-like reflex, demonstrating no obvious abnormality of retinal function or structure. The following abbreviations apply: cd is short for candela, m² is short for square meter, ms is short for millisecond and nV is short for nanovolt.