Scientoon on Evidence That Leonardo da Vinci Had an Eye disorder which made him an extraordinary painter

Scientoon on Evidence That Leonardo da Vinci Had an Eye disorder which made him an extraordinary painter

Christopher W. Tyler, a visual neuroscientist, creator of the autostereogram did the examination of 6 likely portraits and self-portraits of Leonardo da Vinci in which the direction of gaze of each eye is identifiable shows that most paintings exhibit a consistent exotropic strabismus angle of −10.3°. Strabismus, a binocular vision disorder characterized by the partial or complete inability to maintain eye alignment on the object that is the target of fixation, usually accompanied by suppression of the deviating eye and consequent 2-dimensional monocular vision. Probably Leonardo got help in making an extraordinary painting because of strabismus.

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Reference: Tyler CW. Evidence That Leonardo da Vinci Had Strabismus. JAMA Ophthalmol. Published online October 18, 2018. doi:10.1001/jamaophthalmol.2018.3833