Computer Vision Syndrome (CVS) is the catch-all term for any eye or vision-related problems which result from prolonged computer use, and is also known as Digital Eye Strain. While you don't have to worry about CVS increasing the risk of developing other eye disorders, they are discomforts that can be difficult to manage. CVS symptoms are caused by: poor lighting, glare on a digital screen, improper viewing distances, poor seating posture, and uncorrected vision problems. In some cases, a simple change in prescription can prevent these discomforts. Sometimes the symptoms can be fixed with visual therapy, a simple set of visual training exercises available from the optometrist. The most common symptoms of CVS are: eye strain, headaches, blurred vision, dry eyes, and neck/shoulder pain. To relieve CVS symptoms, follow these tips. Certain nutrients can reduce eye discomforts caused by CVS, or reduce the risk of certain eye diseases. These are all available in supplement forms as well. Bioflavonoids and carotenoids Both of these nutrients are groups of complex molecules which are made only by plants and have been shown to protect against cataracts and macular degeneration. Bioflavonoids are found in tea, red wine, citrus fruits, blueberries, cherries, legumes, and soy products, giving these foods super-antioxidant properties. Carotenoids are yellow, green or orange pigments. Two carotenoids important to eye health are Lutein and Zeaxanthin, and are found in spinach, kale, collard greens, and squash. There are health supplements readily available with these carotenoids. Nutrients to support eye health . The effects of blue light from screens are of popular concern, but studies have yet to confirm whether it can actually damage your eyes. Studies show that blue light-filtering glasses do nothing to prevent the discomfort from staring at screens. Studies also fail to prove whether our eyes are actually being damaged by the light from screens. You can rest assured that currently there is no evidence to suggest that Computer Vision Syndrome accelerates the aging process in eyes, or causes vision-related diseases. However, screen light exposure most certainly affects the circadian rhythms of our bodies. These are our bodies' natural energy cycles that in part responds to light, and this is why it is important to put phones and screens away well before bedtime. These aren't caused by CVS, but if left uncorrected, may contribute to CVS symptoms: Presbyopia (a natural aging process that changes the lens shape, making it more difficult to focus on close objects.) Nearsightedness Farsightedness Astigmatism (blurred vision caused by either an irregular shape of the cornea, or the curvature of the eye lens.) These eye diseases are unrelated to CVS and don't contribute to CVS symptoms. Proper nutrition and UV protection can help to reduce the risk. Cataracts: A cloudy or opaque area in the normally clear lens of the eye located behind the iris. Some sensitivities caused by cataracts may be similar to CVS symptoms. Macular degeneration: An eye disease affecting the macula (the center of the light-sensitive retina at the back of the eye), causing loss of central vision. Age related macular degeneration is the leading cause of severe vision loss in adults over age 50. Sunlight and UV Exposure Whether it is for pastimes, work, or ordering lunch, we are looking at screens constantly. At the end of the day, your eyes may feel strained, dry, or it may feel harder to focus. Does screen time affect our eye health, how does it compare to other factors that affect our eye health, and what measures can we put in place to keep our eyes healthy and have less discomfort? STAFF Eye Health and Preventative Measures Although we may feel most the discomforts from bright screens and poor indoor lighting, the greatest hazard to our vision is still considered to be UV rays from sunlight. UV exposure is a major risk factor for the development of cataracts or macular degeneration. LifeWorks Benefit Support (24/7): 1-877-418-1535 https://www.lifeworks.com/ca/ Someone is always here for you! First Nations Inuit Hope for Wellness: 1-855-242-3310 (24 hours) Text4Hope: Text COVID19HOPE to 393939 KTC Counselling Services: Contact Health Centre AHS Mental Health Line: 1-877-303-2642 Computer Vision Syndrome Fatty acids Omega-3 fatty acids may help prevent age-related macular degeneration and dry eyes, and can be found in salmon(and other fish), fresh ground flaxseed, and walnuts. Shelf-foods such as flaxseeds and walnuts must be stored in a way that prevents the fatty acids from breaking down, which is why it is best to grind flaxseed right before using it, and to keep walnuts sealed in a cool, dry place. Omega-3 can also be found in eggs, meats, and poultry, but are higher in plant foods and fish. Melanin is the pigment in our eyes preventing UV damage - however, melanin levels vary, and the protection it provides starts to decrease around the age of 65. This is why it is important to wear sunglasses designed for UV protection. Vitamins and Minerals Vitamin A,Vitamin C, Selenium, Vitamin E and Zinc are all vitamins which, in combination with bioflavonoids and carotenoids, reduce the risk of eye discomforts and eye diseases. In particular, it is worth noting that Vitamin A is essential to good vision and may protect against night blindness and dry eyes, and can be found in beef, chicken liver, eggs, butter, and milk. Sources: https://www.allaboutvision.com/nutrition/nutrition_summary.htm https://www.aoa.org/patients-and-public/ https://globalnews.ca/news/6253027/blue-light-effects/ Blue light can stay in sight (except at night) Adjust your seating Keep references and notes high near your monitor Adjust your screen's brightness/contrast Use artificial tears if eyes are dry Receive regular optometrist exams Blink more often Follow the "20/20/20" rule