Xanthelasma

That condition in which there is a flat tumor of a dirty sulphur-yellow color which projects alittle above the skin of the lid. It is foundmost frequently on the upper and lower lids atthe inner angle of the eye.

Source: Ophthalmic Dictionary including pronunciation, derivation and definition of the words used in Optometry and Ophthalmology by James J. Lewis, Oph. D. Professor of Optometry in the Northern Illinois College of Ophthalmology and Otology, Chicago.