The Eye of Da Vinci’s cat

Leonardo Da Vinci’s Vitruvius Man is one of the world’s most famous drawings. His cat was the only living being who had to privilege to watch Dr Vinci make the drawing.  Unfortunately, we cannot interrogate the cat now. 

I tried to imagine what the cat’s eye looked like at the time.  I am afraid my imitation of the Vitruvius Man is a very poor one.