The tag alias #77727 no_eye -> eyeless is pending approval.

Reason: Same thing.

No eye, singular, could refer to a character with a single missing eye:

post #5604980

Though it currently doesn't seem to have been used that way.

This is the rare case where I'd recommend a disambiguation instead. The main tags are currently eyeless, missing_eye, empty_eye_socket, empty_eye_sockets, and the lesser-tagged missing_eyes. The tag no_eye could fall under most of these within reasonable interpretation. I know the plural version is already an alias, but it's a little more likely to be the intended usage.

song said:
This is the rare case where I'd recommend a disambiguation instead. The main tags are currently eyeless, missing_eye, empty_eye_socket, empty_eye_sockets, and the lesser-tagged missing_eyes. The tag no_eye could fall under most of these within reasonable interpretation. I know the plural version is already an alias, but it's a little more likely to be the intended usage.

No_eye_(disambiguation) sounds like a good idea