I never truly noticed that cheren didnt have his glasses when I did the travel with cheren side mission in the forest where one of the seven sages asks what happened to cherens glasses. What happened to them and why is Bianca wearing classes?
Recently, I saw Cheren making his thumb and middle finger into a circle like glasses. He said he gave up his glasses so he can focus on Pokemon battles, but maybe Cheren actually misses them' Hm... Maybe a circle is just a circle! 'The National Gymquirer'! We eagerly await your letters!"
From Bulbapedia...
