Hi, i teach makeup and havent come across this particular question in an exam, however would suggest that they are looking for information along the lines of: checking to see if client wears contact lenses and if so you may need to check mascara type etc as some contain filaments which may irritate the eye. i personally wouldnt ask a client to remove their lenses before applying makeup, as this means after all your hard work the client then has to try and put their lenses back in which could cause the makeup to smudge etc, also some peoples eyes water when they put them in. Re glasses, as the post above states, dependant on the lenses in the glasses, the eyes can look bigger or smaller so i normally get the client to pop them back on quickly once i have done the eyes check if it looks ok/colours need muting/darkening/adjusting etc.x