Vision and art

Tyler postulates that this "... ability to switch to monocular vision ... would perhaps explain his [da Vinci's] great facility for depicting the three-dimensional solidity of faces and objects in the world and the distant depth-recession of mountain scenes" It would seem to me that any artist could gain this perspective and switch to monocular vision by closing one eye. Perhaps it will spawn as much debate as "What color is that dress?" PCON "The aspect of this research over which I struggle is believing that exotropia, although postulated to be intermittent, could somehow be an advantage and contributed to da Vinci's artistic genius. - SCOTT A. EDMONDS, OD, FAAO References: Avramova N. Rare eye condition was behind da Vinci's genius, research claims. https://www.cnn.com/2018/10/18/health/da-vinci-rare-eyecondition-study-intl/index.html.