It can be, rarely (peering eyes).

The word peering is the present participle of the verb (to peer) and may be used as an adjective or a noun (gerund).

The two hikers stood on the cliff, peering into the valley below.

That nosy neighbor lady is always at her window, peering at whatever's out here.

Peering through the hole in the fence, the strange man saw everything.

The cast of Peering from the Moon - 1991 includes: Daming Chen Gideon Fountain Kelvin Garvanne Xiaoshuai Wang