(espionage, of documents) Meant to be read only, and not discussed, by the named recipient, classified.
Origin of eyes-only
From the phrasefor your eyes only
American Heritage Dictionary of the English Language, 5th Edition
Eyes-only Sentence Examples
Dean managed to hand her his business card but she seemed to dismiss it, with eyes only for the charming Fred O'Connor.
You had eyes only for Tessa.
The face is flat and wide, the nose short, the mouth large and the eyes only slightly oblique.
The profits of trade had value in his eyes only as means to these ends, and settlements were important chiefly as a base of discovery.
The French Revolution, in which all Europe was engrossed, was in Goethe's eyes only another proof that the passing of the old regime meant the abrogation of all law and order, and he gave voice to his antagonism to the new democratic principles in the dramas Der Grosskophta (1792), Der Burgergeneral (1793), and in the unfinished fragments Die Aufgeregten and Das Miidchen von Oberkirch.