Healthspan Retinex Max (60 Tablets) | Long Term Vision and Eye Health | 20mg Lutein & 2,000ug Zeaxanthin | Added Vitamin B2 Contributes to Normal Vision | Natural Source Carotenoids | Vegan

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Cataracts are an opacity in the normally crystal-clear lens. They are caused by changes in proteins that are similar to those which turn cooked egg white from clear to cloudy. This results in blurring, sensitivity to sun glare, changes in colour perception and seeing halos around light. What causes it? As we get older, the risk of poor eyesight increases, with the most common causes being cataracts, glaucoma, and age-related macular degeneration (AMD). Many of these conditions are also progressive – which means that there is always a benefit to starting an eye health routine, even if you have one of these conditions already. Kalderon, Mark Eli (2008). "Metamerism, Constancy, and Knowing Which" (PDF). Mind. 117 (468): 935–971. doi: 10.1093/mind/fzn043. JSTOR 20532701. These form when the (normally clear) proteins of the eye's lens turn cloudy, like egg white. This can be triggered by many factors, including exposure to ultraviolet light. Analysis of eight studies , involving more than 12,000 people, found that those with good blood levels of lutein and zeaxanthin were between 27 and 37 per cent less likely to develop cataracts than those with low levels. The 20/20/20 rule is a good one to follow: work for 20 minutes, then look 20 feet away for 20 seconds. 3. Eat the 'traffic light' way

National Institute for Health and Care Excellence (NICE) is the organisation that considers the evidence behind treatments for all general health conditions and provide patients, health professionals and the public with reliable guidance on current best medical practice. NICE has not approved the use of antioxidant vitamins and minerals in the management of AMD. Hering, E. (1964) [1920]. Grundzüge der Lehre vom Lichtsinn[ Outlines of a theory of the light sense]. Translated by Hurvich, L. M.; Jameson, D. Berlin: Springer. There are many simple (and often inexpensive) steps that we can take to support our short- and long-term eye health. These include regular eye tests (which can help to detect glaucoma), wearing sunglasses to protect eyes from UV rays (which can potentially damage parts of the eye, increasing the risk of cataracts and AMD) and taking screen breaks.

Reduce your risks

Berendschot, T. T., Goldbohm, R. A., Klopping, W. A., van de, Kraats J., van Norel, J., and van Norren, D. Influence of lutein supplementation on macular pigment, assessed with two objective techniques. Invest Ophthalmol.Vis.Sci. 2000;41(11):3322-3326. View abstract. Kang JH, Willett WC, Rosner BA, Buys E, Wiggs JL, Pasquale LR. (2016). Association of Dietary Nitrate Intake With Primary Open-Angle Glaucoma: A Prospective Analysis From the Nurses' Health Study and Health Professionals Follow-up Study, JAMA Ophthalmology. Lutein is concentrated in a part of the retina called the macula, which is responsible for the fine vision needed for reading and recognising faces. Some lutein is also converted into another carotenoid – zeaxanthin – and together they act like 'nature's sunglasses' to filter out damaging blue light. Aune, D., Chan, D. S., Vieira, A. R., Navarro Rosenblatt, D. A., Vieira, R., Greenwood, D. C., and Norat, T. Dietary compared with blood concentrations of carotenoids and breast cancer risk: a systematic review and meta-analysis of prospective studies. Am J Clin Nutr 2012;96(2):356-373. View abstract. Christensen, M.A., Bettencourt, L., Kaye, L., Moturu, S.T., Nguyen, K.T., Olgin, J.E., Pletcher, M.J. and Marcus, G.M.(2016). Direct measurements of smartphone screen-time: relationships with demographics and sleep PloS one

Some studies have suggested that exposure to high levels of sunlight (particularly the UV light contained in sunlight) throughout your life may increase your risk of developing AMD, but this has not been proven. However, wearing sunglasses to protect your eyes from the UV light in sunlight is a good idea for everyone throughout their life. Monitoring vision and regular eye examinations Daw, Nigel W. (November 17, 1967). "Goldfish Retina: Organization for Simultaneous Colour Contrast". Science. 158 (3803): 942–4. Bibcode: 1967Sci...158..942D. doi: 10.1126/science.158.3803.942. PMID 6054169. S2CID 1108881. Ribe, N.; Steinle, F. (2002). "Exploratory Experimentation: Goethe, Land, and Color Theory". Physics Today. 55 (7): 43. Bibcode: 2002PhT....55g..43R. doi: 10.1063/1.1506750. Zhao, Z.C., Zhou, Y., Tan, G. and Li, J.(2018). Research progress about the effect and prevention of blue light on eyes International journal of ophthalmology Bartlett, H. E. and Eperjesi, F. A randomised controlled trial investigating the effect of lutein and antioxidant dietary supplementation on visual function in healthy eyes. Clin.Nutr. 2008;27(2):218-227. View abstract.Morel, Jean-Michel; Petro, Ana B.; Sbert, Catalina (2009). Eschbach, Reiner; Marcu, Gabriel G; Tominaga, Shoji; Rizzi, Alessandro (eds.). "Fast implementation of color constancy algorithms". Color Imaging XIV: Displaying, Processing, Hardcopy, and Applications. 7241: 724106. Bibcode: 2009SPIE.7241E..06M. CiteSeerX 10.1.1.550.4746. doi: 10.1117/12.805474. S2CID 19950750. QUALITY INGREDIENTS FIRST: Healthspan work harder to seek out the best-quality ingredients for their supplements. They source and manufacture their range, ensuring optimal purity and quality along the way so whether it is faster-acting, better-absorbed, filtered for optimal purity or simply contains more active ingredients, they're confident you won't find better quality.