Leonardo da Vinci has a sharp artistic eye due to vision problems

is one of the most respectable painters of all time, and now a new study has helped explain his unique style.

Leonardo used his own image as the Lord's face in the masterpiece and two pupils were shown the route - (Photo from City University, Lon Don).

Researchers from City University, Lon Don suggested that da Vinci might have had an eye disease called strabismus at times.

This disease caused the eyes to look out - and may have helped da Vinci capture the gaps on a flat canvas.

In the study, researchers analyzed da Vinci's sculptures, oil paintings and paintings.

Their analysis indicates that da Vinci may have been sneaked out from time to time.

This disease may have led to an ability to switch to one-eyed vision, in which both eyes are used separately.

By looking at one eye, da Vinci was probably able to describe the 3D aspects of the world 's faces and objects, as well as the depths of the mountain scenes.