Of the eye; of light (7)
I believe the answer is:
optical
(Other definitions for optical that I've seen before include "Concerning sight" , "Relating to the eye" , "Relating to light/vision" , "Sighted" , "connected to light" .)
I believe the answer is:
optical
(Other definitions for optical that I've seen before include "Concerning sight" , "Relating to the eye" , "Relating to light/vision" , "Sighted" , "connected to light" .)