[f. EYE sb.1 + -FUL.] a. As much as the eye can take in at once. b. A minute quantity; a wink (of sleep).
1832. J. Wilson, in Blackw. Mag., XXXI. 865. We prefer a miniature picture of the Swiss Giantess to the giantess herselfan eyeful for one to an armful for ten.
1860. Reade, Cloister & H., II. 37. You drop off again, and get about an eyeful of sleep: lo, it is tinkle, tinkle, for matins.
1876. D. Stevenson, in Gd. Words, 687. [We] with large eye-fuls took the landscape in.