What do men's dragon and phoenix eyes represent in physiognomy?

Single eyelid and double eyelid are "legendary" dragon and phoenix eyes, which are relatively rare. In the world, people always regard the single eyelid as a symbol of a girl in China (I don't know what the basis is). Most people in China have double eyelids, but not a few have single eyelids. Dragon and phoenix eyes are rare, and fortune tellers say that they are rich and rich, but there is no basis.