Superman's heat vision obviously has a lot of 'heat', so how does it not burn his eyelashes?
Do his eyelids have a high burning temperature or does he apply too much Lakme?
For clarification, I am simply asking - Why does the Heat from his 'Heat vision' not burn off his eyelashes??
@Eike Pierstorff's comment further elaborates my point that if Superman's beard is unable to handle the heat, how do the eyelashes handle it?