Ключевые слова: accessory, background, blind, blindness, blur, blurred, bright, concept, correction, eye, eyeball, eyeglasses, eyepiece, eyes, eyesight, focus, frames, glass, glasses, health, human, illness, keenness, look, loss, medical, oculist, ophthalmic, ophthalmologist, optic, perspective, poor, problem, protect, protection, see, sharp, sharpness, short, sickness, sight, spectacle, sunglasses, vegetation, view, vision, weak,