Computer Vision Syndrome
Computer vision syndrome (CVS) is used to describe the symptoms commonly experienced after spending 2 or more hours on digital screens. 
Symptoms Include:
Tired eyes
Eye strain
Headaches due to prolonged screen exposure*
Dry eyes after looking at screens for long periods of time*
Many experts attribute tired, strained eyes to a type of light emitted by digital screens called blue light. Blue light is a type of visible light that can damage the delicate photoreceptors. Like UV light, blue light has a cumulative effect, meaning that the more your patients are exposed to it, the more it impacts their eye and overall health.
Nutritional Intervention for Screen Time

Nutrition plays a huge role in blue light protection and screen time symptoms. Macular pigment, the eye’s natural barrier between blue light and the photoreceptors, is made up of 2 dietary carotenoids called zeaxanthin and lutein. By increasing the intake of these important nutrients, patients can build their natural blue light protection and, in turn, mitigate their risk for developing symptoms of screen time.

Using clinical research, EyePromise developed a line of eye health nutraceuticals designed to provide solutions for your patients who are consistently exposed to blue light and screen time. With a chewable product that’s safe for kids as young as 4 and a more comprehensive formula for adults, the EyePromise Screen Shield line has everything your patients need.

Clinical Support
  • Zeaxanthin and Visual Function (ZVF) Clinical Research Study (Richer, et. al. - Journal of Optometry, 2011)
    Read the study

  • Oxidative photodegradation of ocular tissues: Beneficial effects of filtering and exogenous antioxidants (Billy R. Hammond, Bart A. Johnson, Eric R. George - Experimental Eye Research, 2014)
    Read the study

  • Viewing distance and eyestrain symptoms with prolonged viewing of smartphones (Long, Cheung, Duong, Paynter, Asper - Clinical and Experimental Optometry, 2016)
    Read the study

  • Effects of blue light on the circadian system and eye physiology (Gianluca Tosini, Ian Ferguson, Kazuo Tsubota - Molecular Vision, 2016)
    Read the study

  • Effects of dietary supplementation with a combination of fish oil, bilberry extract, and lutein on subjective symptoms of asthenopia in humans (Fuminori Kawabata and Tomoko Tsuji – Biomedical Research, 2011)
    Read the study

  • The effect of lutein supplementation on visual fatigue: a psychophysiological analysis (Yagi A, Fujimoto K, Michihiro K, Goh B, Tsi D, Nagai H. - Appl Ergon, 2009)
    Read the study

  • Photochemical damage of the retina. (Wu J1, Seregard S, Algvere PV. – Surv Ophthalmol. 2006)
    Read the study

  • Macular carotenoid supplementation improves disability glare performance and dynamics of photostress recovery (Stringham et al. - Eye and Vision, 2016)
    Read the study!

  • Contrast Sensitivity and Lateral Inhibition Are Enhanced With Macular Carotenoid Supplementation (Stringham JM, O’Brien KJ, Stringham NT - Invest Ophthalmol Vis Sci., 2017)
    Read the study

  • The Associations between Near Visual Activity and Incident Myopia in Children (American Academy of Ophthalmology, 2018)
    Read the study

  • Macular pigment optical density is positively associated with academic performance among preadolescent children (Barnett et al. - Nutr Neurosci., 2019)
    Read the study

  • Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness (Anne-Marie Chang, Daniel Aeschbach, Jeanne F. Duffy, Charles A. Czeisler - Proceedings of the National Academy of Sciences, 2015)
    Read the study

  • American Academy of Pediatrics research
    See the list


Why Do Our Screen Time Products Stand Out?
Zeaxanthin
This critical antioxidant is chosen by the retina to protect central vision. Additionally, zeaxanthin is accumulated in the fovea (center of the retina) 2 times more than lutein. While the eye itself chooses to include more zeaxanthin in its own protection, most eye vitamins choose to match the ratio found in the diet, which is 5 to 1 lutein to zeaxanthin. EyePromise recognizes the importance and scarcity of zeaxanthin and, therefore, chooses to include 4x more than other products.
Lutein
While zeaxanthin is extremely important, lutein is no scrub. This antioxidant plays an important role in protecting vision from dangerous blue light, and it's been found to help support many other parts of the body.

Screen Time

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