When someone becomes excited, their pupils can dilate to up to four times their original size. Conversely, an angry, negative mood causes the pupils to contract to what are commonly known as 'beady little eyes' or 'snake eyes'. Lighter eyes can look more attractive because it's easier to see the dilation taking place.
The term papilla (plural: papillae) generally means a nipple-like structure, and may refer to: Mammary papilla, or nipple. Amphibian papilla and basal papilla, part of the inner ear of the frog. Interdental papilla, part of the gingiva between teeth.
Oral papillomas (warts) are benign tumors of the epithelial lining of the mouth and throat.. Oral papillomas (warts) are benign tumors of the epithelial lining of the mouth and throat caused by papillomaviruses. The esophagus may also be affected in severe cases. Papillomaviruses are species-specific and are fairly site-specific but can be transmitted to the skin or eyes if the protective outer epithelium is damaged.