Xiong Gaowu, 62, possesses a thrilling age-old skill – he can clean up people’s inner eyelids and eye corners with a sharp blade. / Photo via CNWest

It looks terrifying but you can rest assured that no one has been injured during Xiong's eye treatment. / Photo via CNWest

This Chengdu elderly has been doing this for the past four decades. He is sure that people can see better after this treatment. / Photo via CNWest

Xiong applies this treatment only to people 30 years old or older. “People under 30 have no dirty stuff in their eyes,” he said. / Photo via CNWest

Xiong's roadsider business has requires few equipment. His signboard reads: Exquisite feats, mastery skills. / Photo via CNWest