Dehydration & Eye Health: How Low Water Intake Triggers Blurred Vision & Headaches

Most people know hydration is important for the body — but few realize how crucial it is for eye health. Even mild dehydration can impact your eyesight, leading to dry eyes, blurred vision, redness, burning, and headaches. Doctors explain that when the body lacks water, it doesn’t produce enough tears — and tears aren’t just for crying. They contain water, oils, and mucus that protect and nourish the eyes. Without proper hydration, vision problems can develop, especially with today’s high screen time. This video breaks down the science of how dehydration impacts eyesight, the symptoms of dry eye syndrome, and why drinking at least 8 glasses of water daily is essential. Whether you wear contacts, spend long hours at the computer, or live in a dry climate, staying hydrated can make all the difference to your vision and comfort.