Read the excerpt below and answer the question. Now came a pause of ten minutes, during which I, by this time in perfect possession of my wits, observed all the female Brocklehursts produce their pocket-handkerchiefs and apply them to their optics, while the elderly lady swayed herself to and fro, and the two younger ones whispered, "How shocking!" (chapter 7) Using context clues, the word optics in the above passage most likely refers to.