Yes, drinking plenty of water is crucial for healthy eyesight because it keeps your eyes hydrated, supports tear production, prevents dryness and irritation, and helps maintain overall eye comfort, though it won't correct vision problems like nearsightedness (myopia). Staying hydrated can alleviate symptoms of dry eyes, like stinging, burning, and blurriness, and ensures your eyes get necessary nutrients, but it's not a cure for refractive errors, according to.
Most of the time, dehydration just causes blurred vision or problems focusing. So, in a sense, dehydration can cause vision loss. Although, the vision loss is only temporary in many cases as long as you rehydrate your body with plenty of water.
If you have blurred vision, the things you see will not look sharp and clear. Blurred vision can be caused by different eye conditions, medical conditions or even medicines. Treatment for blurred vision can include eye drops, glasses, contact lenses, laser eye surgery or medicines.
Dehydrated eyes may struggle to produce enough tears or to maintain a protective tear film. Over time, this can lead to discomfort, blurred vision, and increased light sensitivity.
Superior eye health stems from a healthy diet. Make sure you're getting plenty of nutrients such as omega-3 fatty acids, zinc, lutein, vitamin C, and vitamin E. Reach for green, leafy vegetables such as kale or spinach and try to incorporate salmon, tuna, or other types of oily fish into your diet.
Natural Ways to Help Improve Vision and Eye Health
Lots of time spent on screens has been linked to development of vision problems, myopia, dry eyes and digital eyestrain. This can affect people of all ages, but young adults who have had myopia from their childhood or teenage years can be especially impacted.
Water keeps your eyes moist and is a key component in the tear film that moistens your eyes. When your fluid level drops, your eyes struggle to produce enough tears to lubricate the outside surface of the eye. If you don't drink enough water throughout the day, your eyes may feel dry and might itch, burn, or look red.
Often, it's something minor, such as debris, dry eyes, or minor irritation. More serious causes include retinal issues, infections, or eye inflammation. We recommend getting urgent medical advice if the blur is sudden, severe, or accompanied by pain. Contact your optician as soon as possible for advice on what to do.
Symptoms of dehydration
Can Blurred Vision Go Back to Normal? The possibility of blurred vision returning to normal is dependent on the underlying cause. If the blurriness is a result of temporary conditions such as eye strain, dehydration, or a side effect of certain medications, it may be possible to restore your vision.
Vuity eye drops are the only FDA-approved eye drop that treats age-related blurry near vision—better known as presbyopia. The drop is most effective in people aged 40 to 55 who struggle to see clearly when performing daily tasks—such as reading your phone or computer screen.
While glasses or contact lenses can provide immediate clarity, many people seek natural remedies to improve their vision without relying solely on corrective lenses.
Staying hydrated carries a host of health benefits—it helps us maintain a normal body temperature and blood pressure, flushes out toxins, regulates our gut health, and cushions our joints. It also helps the body keep a delicate balance of sodium, vitamins, mineral, and hormones, among other important nutrients.
Stay Fully Hydrated
While the recommended daily amount of water intake can vary by individual, most healthcare providers recommend drinking at least eight glasses of water per day. If you drink enough water, your eyes should start feeling hydrated over time.
The concept is easy to remember: Every 20 minutes, look at something 20 feet away for at least 20 seconds. This short break allows your eye muscles to relax after continuous near-focus activity, helping to prevent fatigue, dryness, and headaches.
Early signs of an eye stroke (retinal artery occlusion or ischemic optic neuropathy) typically involve sudden, painless vision loss or changes, most often in only one eye, including blurred vision, blind spots, floaters, or a dark shadow covering part of your sight. It often happens upon waking and is a medical emergency requiring immediate attention to potentially save sight and identify a risk for a full stroke.
Fluctuating blood sugar levels—whether you have diabetes or not—can temporarily affect the shape of your eye's lens, causing unexpected vision changes. For some people, this can lead to moments of improved sight or even make glasses feel less necessary.
Make sure you get regular eye exams and report any changes in how well you see, including blurriness. Remember that experiencing sudden blurred vision is an emergency, and you should get medical help right away.
For most people, dehydration is the much greater issue. However, if you suspect you may be overhydrated, look for symptoms like cloudy thinking, nausea and vomiting, muscle weakness, spasms or cramps and headaches. In severe cases symptoms could include mental confusion, seizures, unconsciousness and even coma.
A. Yes, because when you're dehydrated, your body produces fewer tears, resulting in dry eyes. Without sufficient tears, your eyes can become irritated and your vision may become blurry. An eye doctor can recommend special eye drops or other treatments to alleviate some of the uncomfortable symptoms of dry eye.
The time it takes to rehydrate can vary depending on how mildly or severely dehydrated you are. If you are experiencing mild dehydration, the body can rehydrate in 45 minutes with around 600mL of water. For more severe dehydration, it can take longer and will usually require medical attention.
Poor nutrition: A diet lacking in essential vitamins and nutrients can increase the risk of developing cataracts and macular degeneration. Excessive screen time: Staring at screens for long periods without breaks can cause eye strain, dryness, and blurred vision. This is known as computer vision syndrome.
The 10-10-10 rule for eyes is a simple strategy to combat digital eye strain: every 10 minutes, take a 10-second break and look at something at least 10 feet away, giving your eyes a rest from near-focus on screens. This practice helps prevent eye fatigue, dryness, and headaches by allowing eye muscles to relax and encouraging blinking, which is often reduced during screen use, says Healthline and Brinton Vision.
Screen time is not considered a direct cause of glaucoma progression, but research shows that prolonged device use can temporarily increase intraocular pressure, particularly in people who already have glaucoma. These pressure increases are usually temporary and return to baseline after you stop using screens.