Eye-cup is the term describing a specific cup type in ancient Greek pottery, distinguished by pairs of eyes painted on the external surface. Classified as kylikes in terms of shape, they were especially widespread in Athens and Chalkis in the second half of the sixth century BC. The bowl of the eye-cup rests on a short squat foot; both sides are dominated by large painted pairs of eyes under arched eyebrows. The eyeballs are painted in silhouette style, later often filled with white paint or painted white on black. Some eyes are “female”, i.e. almond-shaped and without tear-ducts. Often, a stylized nose is placed centrally between the eyes. While used as a drinking vessel, due to the necessary inclination of the vessel, the cup with its painted eyes, the handles looking like ears and the base of the foot like a mouth, would have resembled a mask. Many of the vases also bear dionysiac imagery. The eyes are assumed to have served an apotrophaic (evil-averting) function. Eye-cups were painted by various painters, mostly in the black-figure style, but later also in the red-figure technique. The earliest bilingual vases include specimens of eye-cups with a black-figure interior and a red-figure exterior. The introduction of this type and its specific decration into Attic vase painting is attributed to Exekias. His eye-cup in Munich, dated 530-540 BC, is considered a masterpiece of the type. It depicts Dionysos, lying in a symposiast posture on a ship. His divine nature is indicated by his attributem, a vine, growing from the mast. Other well-known examples of eye-cups are by the following painters or groups:
Amasis;he painted several eye-cups of a variant shape with non-carinated profile (Type B) 
A special type is the Chalkidian style cup, of which further variants exist. Dating is often difficult, but the majority of eye-cups were probably produced between 540 and 500 BC, perhaps up to 480 BC. They were also exported to Italy in large quantities. The majority of vases of this type were found as grave goods in Etruscan chamber tombs.
Corpus vasorum antiquorum. Deutschland. Hrsg. Komm. f. d. Corpus Vasorum Antiquorum b. d. Bay. Akad. d. Wiss. /Union Académique Internationale.Bd 77: München, Antikensammlung Band 13. Attische Augenschalen. Bearb. Fellmann, Berthold. 2004. ISBN 3-406-51960-1