I have been taking Nutrivision for 3 weeks and have been pleasantly surpirsed by the results. I work from home and spend most of my day in an office, looking at a computer, this obviously concerns the impact of my long term eye health. Since taking Nutrivision I felt my vision has sharpened, the biggest difference I have noticed is after a day of sitting at a computer, at night time I am able to watch tv or play video games without squinting. Even the smallest of text on my TV I can easily read. I noticed this after just 2-3 days of taking Nutrivision and would definitely recommend people give it a go.