Slang. someone or something that is visually attractive or pleasing but is usually considered to lack worth or merit.
Origin of eye candy
First recorded in 1980–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a person who is or people considered highly attractive to look at, often implying that they are but lacking in intelligence or depth
something intended to be attractive to the eye without being demanding or contributing anything essential
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
also eye candy, "attractive woman on a TV show, etc.," by 1978, based on a metaphor also found in nose candy "cocaine" (1930).
Online Etymology Dictionary, © 2010 Douglas Harper