Ключевые слова: astigmatism, blind, book, bookshelf, bookworm, close up, correction, corrective, education, eye glasses, eyeglasses, eyewear, focus, glasses, hornrimmed, information, investigate, investigation, knowledge, lake, learn, learning, lens, library, literature, medical, medical eyes, myopia, myopic, old, open, open book, optical, page, read, reading glasses, reading specs, school, sharp, spectacles, study, studying, text, university, unsharp, wisdom, words,