An adjective for “eyeless” appearing in Late Notes on Verb Structure (LVS) from 1969 as a combination of Q. al(a)- “not” and Q. hen “eye”, so perhaps more literally “*not eyed” (PE22/153). This use of al(a)- to mean “-less, without” was a normal but somewhat archaic function of that prefix:

Older formations were those in which al functioned as E[nglish] “-less” or “no, non-, without”. As alahen, pl. alahendi “eyeless” (PE22/153).