Why Rembrandt and da Vinci may have painted themselves with skewed eyes

Scientists are still debating if the cause was an eye disorder or one strongly dominant eye

Rembrandt self-portrait

In Rembrandt’s 1639 etching, Self-Portrait, Leaning on a Stone Wall, the eye on the left looks straight ahead while the eye on the right faces slightly outward.

Gift of John J. Glessner III, 1947/The Metropolitan Museum of Art

A strongly dominant eye, not an eye disorder, may explain why Leonardo da Vinci and Rembrandt van Rijn painted themselves with misaligned eyes.