Da Vinci’s genius may be due to eye disorder: study

Italian polymath Leonardo da Vinci may have had an eye condition that gave him the unusual ability to recreate three-dimensional shapes in his sculptures and paintings, a study has found. A person with the condition strabismus have eyes that appear to be pointing in different directions, with only one eye being used to process the visual scene. Analysing portraits Christopher Tyler of the City, University of London in the U.K. measured the eyes in six masterpieces thought to be portraits or self-portraits of da Vinci, including his works Vitruvian Man and Salvator Mundi , the most expensive painting of all time. The study, published in JAMA Ophthalmology , suggests that da Vinci had an intermittent version of the condition. This allowed Da Vinci to switch between using two eyes (stereoscopic vision) to give him depth perception, and using just one eye (monocular vision) when he wanted to interpret a three-dimensional image on a flat, two-dimensional canvas. “Several great artists, from Rembrandt to Picasso, are thought to have had strabismus, and it seems that da Vinci had it too,” said Mr. Tyler. “The weight of converging evidence suggests that da Vinci had intermittent exotropia — where an eye turns outwards — with a resulting ability to switch to monocular vision, using just one eye,” he said. The condition is rather convenient for a painter, since viewing the world with one eye allows direct comparison with the flat image being drawn or painted, researchers said. “Having strabismus would perhaps explain da Vinci’s great facility for depicting the three-dimensional solidity of faces and objects in the world and the distant depth recession of mountainous scenes,” said Mr. Tyler. He analysed eyes in six pieces of art thought to be based on da Vinci: David (Andrea del Verrocchio); Young Warrior (Andrea del Verrocchio); Salvator Mundi (da Vinci); Young John the Baptist (da Vinci); Vitruvian Man (da Vinci) and another possible da Vinci self-portrait. Mr. Tyler fitted circles and ellipses to the pupils, irises, and eyelid apertures on the artwork and then measured the relative positions of these features.

Source : https://www.thehindu.com/todays-paper/tp-life/da-vincis-genius-may-be-due-to-eye-disorder-study/article25282097.ece

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