Ключевые слова: ache, adult, background, business, businessman, busy, career, caucasian, concept, dark, deadline, entrepreneur, eyeglasses, eyes, eyesight, eyestrain, fatigue, glasses, guy, job, lifestyle, low light, male, man, millennial, modern, night, notes, office, online, overnight, overtime, overworked, pain, people, poor, problem, sight, sitting, sore, taking, tension, touching, vision, white, work, workplace, writing, young,