have u ever read something so har to read it hurt your eyeS?

hola guys i have only one queston to ask tu guys, only one!! my queston for tu today is have tu ever readed someting so hard to read that it acually brot fizical pane to you? like my eyes are in pane right now.im right siguiente to my window because today im lectura this book and its called Juan Flu Over the Coocoo Nest and its a long buk the warts are so hard theres so many warts in the book. i jut cant because it starts hurting my eyes and i want to know if youve ever felt this feeling to? i guess thats why they call it wondow pane