ixcuacuauhtic.

Headword: 
ixcuacuauhtic.
Principal English Translation: 

one whose eyes ache from too much reading (see Molina)

Orthographic Variants: 
ixquaquauhtic
Alonso de Molina: 

ixquaquauhtic. el que tiene dolor de ojos assi.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 47r. col. 1. Thanks to Joe Campbell for providing the transcription.