The Pupula duplex is a medical oddity that is characterized by having two irises/pupils in each eyeball. Pupula duplex is Latin for “double pupil”.
Although the condition is inexistent in medical literature, the myth of Liu Ch'ung, Chinese Minister of State in 995 A.D., suffering from it, remains.
This picture of Liu Ch'ung was featured on Ripley's Believe it or not a while ago, leaving the world stunned. A wax rendition of the man's unusual condition is included in Louis Tussaud's Palace of Wax.
Louis Tussaud, the great-grandson of wax artist Marie Tussaud, founded his waxwork museum in 1963. There are currently 5 such museums, all owned by Ripley Entertainment, Wikipedia informs.
Wikipedia also posts info about Xiang Yu, military leader during the late Qin Dynasty, as well as Chinese rulers Shun and Duke Wen of Jin, said to have suffered from the double pupil condition.