Top 10 Harmful Habits You Should Know That Can Damage Your Eyes

When experiencing dry or red eyes, many people reach for eye drops. However, using these drops without a doctor's recommendation can often do more harm than good. Overusing eye drops can cause the blood vessels in the eyes to dilate, and as the drops' effectiveness diminishes, it creates a vicious cycle: red eyes, use of drops, and worsening redness. The preservatives in eye drops may also irritate the eyes. Ophthalmologists often advise against the excessive use of over-the-counter eye drops. Most eye drops offer immediate relief for dryness and eye strain, but regular or excessive use can have the opposite effect, leading to eye irritation or even persistent blurred vision. Additionally, some common ingredients in eye drops include sodium sulphacetamide, chlorpheniramine maleate, naphazoline nitrate, and berberine hydrochloride. The number of drops should be adjusted based on your eye condition—those using saline solution for dust removal might need 3-4 drops, while patients under treatment should limit it to 1-2 drops. It's important to apply one drop at a time and wait for it to be absorbed before applying another. Excessive dripping can cause the drops to overflow, accumulate on the eyelid, and possibly lead to allergic reactions. Always follow a doctor's guidance and avoid using products from unverified sources.

First, it's important to understand that when you wear contact lenses, your eyes need time to adjust to them. Contact lenses also require moisture to maintain their softness and comfort. That's why users are often advised to use special eye drops to prevent the lenses from drying out and causing discomfort. During the day, wearing contact lenses doesn't usually impede oxygen exchange due to blinking. However, when you sleep, contact lenses reduce oxygen supply to the eyes. Just like other organs, your eyes need a steady supply of oxygen to function properly. Wearing contact lenses overnight can not only cause scratches on the cornea but also lead to eye infections, as the lenses can create tiny abrasions that allow bacteria to enter, worsening any existing eye conditions. Over time, untreated infections can lead to more severe damage. So, if you wear contact lenses while sleeping, your eyes won't receive enough moisture, and their oxygen intake will decrease. Although there are thinner lenses available that allow better oxygen permeability, they still can't provide enough oxygen during sleep. As a result, you may wake up with red, irritated eyes, which could become even more uncomfortable throughout the day. Throughout the day, your lenses may collect irritants, becoming a breeding ground for bacteria. Sleeping with them on could lead to corneal infections, dryness, and other issues. Contact lenses are designed for those with vision problems and to enhance appearance, but many people unknowingly wear them overnight, unaware of the risks. Therefore, always remove your contact lenses before bed and clean them thoroughly with a disinfectant solution.

Every day, our eyes are exposed to harmful factors such as bright light, dust, and environmental pollutants (not to mention the specific chemicals some people are regularly exposed to at work). According to the American Optometric Association, wearing sunglasses to block ultraviolet (UV) rays is essential for preventing eye issues. The Sun's rays contain harmful UV rays like UVA and UVB, which can cause eye discomfort, dryness, and damage to the cornea and overall vision. Long-term exposure may even lead to cancer. To protect your eyes, wear sunglasses, hats, or use an umbrella when outdoors. This not only protects your eyes but can also enhance your appearance! In fact, failing to wear sunglasses and allowing UV rays to hit your eyes can result in eye conditions such as conjunctivitis, characterized by red eyes, excessive tearing, and light sensitivity. Ophthalmologists warn that UV rays can directly damage the retina and increase the risk of cataracts. Additionally, these rays can cause skin cancer on the eyelids.

Beauty is an essential part of self-expression, but when it comes to your eyes, daily use of eye makeup like eyeshadow, glitter, false lashes, mascara, and eyeliner can be too much. The habit of using mascara, eyeliner, and eyeshadow may seem harmless, but it can actually harm your eyes. These products can block the oil glands on your eyelids, leading to infections. Tiny particles from cosmetics can also irritate your eyes. Moreover, since bacteria thrive in dark, moist environments, makeup products can become a breeding ground for eye infections. That's why it's important to replace these products every three months. Curling and applying mascara also involve mechanical stress and adhesive chemicals that can cause lashes to weaken, break, or fall out prematurely. Poor-quality mascara can also lead to corneal infections, as the wand introduces bacteria each time it's dipped back into the tube. Additionally, many people use eyeliner pencils, which are formulated with colorants and binders that, while safe for most, can cause irritation or even result in blocked tear ducts and eye discomfort, even after makeup removal. Frequent use of such products can clog your eyelid glands, increasing the risk of infection. Some makeup products may contain harmful chemicals that can further irritate the eyes, so it’s better to reserve heavy eye makeup for special occasions and allow your eyes to breathe naturally on regular days. Make sure to choose safe and suitable makeup products to protect your eyes.

The habit of staying up late—whether working, gaming, or watching movies—doesn't just lead to sleep deprivation; it also harms your eyes. Nighttime is when your eyes need rest after a full day of work. By staying up late, your eyes are forced to keep working in dim light, which gradually decreases your vision quality. If you're using electronic devices such as computers or phones late at night, your eyes are required to adjust and produce more lubricating fluids. Prolonged screen time, especially under insufficient lighting, causes the eyes to produce excessive moisture, leading to dryness and fatigue. Additionally, the light emitted by screens, often referred to as blue light, is the most energy-dense visible light. This type of light can penetrate the eye's natural filters and reach the retina, causing permanent damage. Over time, exposure to blue light accumulates and can result in serious eye conditions, such as macular degeneration, a leading cause of blindness. Today, macular degeneration is affecting younger people more frequently, with research linking blue light exposure to the early onset of this condition.

After a full day of activity without rest, your eyes become overloaded, which affects vision, causing blurriness and discomfort. Prolonged late nights also disrupt the fluid circulation in your eyes, leading to puffy eyes, swelling, and lack of focus. Furthermore, it can cause eye twitching, swelling of blood vessels, and even damage the optic nerve. The number one enemy of your eyes is lack of sleep, a common problem many of us struggle to break. If you don't get enough sleep, it will be noticeable the next day, with dark circles under your eyes. Turn off all devices and make it a habit to go to bed before 11 p.m., ensuring you get at least 8 hours of sleep to keep your eyes fresh and healthy.

The skin around your face is particularly thin and sensitive, making it prone to irritation from even the smallest external factors. This is also the area where the signs of aging are most visible. For those with sensitive skin, leaving makeup on overnight can lead to swelling and irritation. Many women enjoy enhancing their eyes with products like eyelash extensions or mascara. These products are applied close to the eyes, and if not properly cleaned, they can cause itching and eye infections. Expired makeup can also cause irritation, dryness, and other eye problems like conjunctivitis. Another negative impact of this poor habit is that makeup products like mascara and eyeliner can cause your lashes to fall out if not properly removed before bed. Some cosmetics, especially eyeliners and mascaras, are hard to remove and cling tightly to the skin. It’s essential to clean them off thoroughly before sleep to protect your eyelids. This area around the eyes is extremely sensitive, so it’s crucial to keep it clean and maintain proper skin immunity to shield it from harmful bacteria. Therefore, make sure to remove all makeup thoroughly and replace your mascara every three months to avoid bacteria buildup on the brush.
Beauty tips and skincare advice are always reminding women not to sleep with makeup on. Leaving cream or powder on your face overnight can clog pores, cause breakouts, and even accelerate the aging process. Incorrectly removing eye makeup can increase the risk of eye infections such as blepharitis and conjunctivitis, leading to discomfort, itching, and affecting your vision. Makeup and makeup removal go hand in hand. If you don’t remove your makeup properly, layers of powder will build up. Mascara can irritate your eyes, causing infection, and result in continuous lash loss, which is hard to restore. Invest in a good eye makeup remover and proper tools to ensure you thoroughly cleanse your makeup at night.

Scheduling regular eye exams is an essential part of maintaining good eye health. These check-ups are crucial for preserving your vision and keeping your eyes in optimal condition. Healthy eyes with stable vision are the foundation of good eyesight. If you often find your eyes tired and dry after prolonged use of computers or phones, leading to blurred vision, it’s time to get an eye exam. If you notice any signs of deteriorating eyesight, don’t delay in seeking professional care. Additionally, maintaining a regular eye exam schedule can help you detect potential issues early before they worsen. Many people tend to ignore unusual eye symptoms, thinking they’re nothing to worry about, which often results in serious eye conditions requiring expensive and lengthy treatment. Today, conditions like diabetic retinopathy, hypertension-related retinal problems, retinal detachment, macular degeneration, and retinal vein occlusion are becoming more prevalent. These conditions, if left untreated, can lead to severe vision loss or even blindness. Those with these eye diseases often experience a significant decline in their quality of life, facing daily challenges and losing independence. People at higher risk for eye conditions include the elderly, individuals with chronic diseases like diabetes, hypertension, or heart disease, those with severe refractive errors, or individuals who’ve suffered facial trauma. Therefore, it’s important to get an eye exam every six months or seek medical attention immediately if you notice any unusual symptoms. Regular eye check-ups can help you detect other serious health issues like diabetes or even brain tumors in their early stages.

Many of us spend long hours each day staring at our screens. Some doctors worry that prolonged exposure to light from electronic devices could have negative effects on our eyes. Anam Qureshi, MD, a clinical assistant at the NYU Langone Eye Department in New York, explains: 'The blue light emitted from electronic devices is associated with eye health issues because the cornea and contact lenses can't filter it, allowing it to reach the back of the eye.' Some experts believe blue light can damage the retina, potentially leading to conditions like macular degeneration, though no studies have conclusively proven this. Dr. Kiều Thị Thịnh, from the Việt-Nhật Eye Hospital and a specialist at the Vietnam Optical Glasses Clinic in Hanoi, notes that global research suggests prolonged use of phones at close range accelerates eye aging, increases the risk of cataracts, and can lead to refractive errors such as myopia. Additionally, using your phone in the dark, especially at night, can cause eye strain and fatigue, as the blue light demands excessive focus from your eyes. This can eventually raise the risk of nearsightedness. A study conducted in the U.S. found that heavy phone use has led to more cases of macular degeneration, particularly in younger people. While no such statistics are available in Vietnam, it's important to consider this as a potential health risk. With the rise of technology, smartphones have become indispensable, but constant and prolonged use can severely harm our eyes. Using your phone late at night can result in dry eyes, blurred vision, headaches, dizziness, and even nausea. Adjust the brightness on your phone to match your comfort level and take breaks to safeguard your eye health.

Staring at any screen at night, especially when the lights are off before bed, is harmful to your eyes, not just watching TV. In the dark, the stark contrast between the light from the screen and the surrounding darkness makes it difficult for your eyes to adjust. This can lead to eye pain, fatigue, blurred vision, and dryness. Psychologists have noted that watching TV at night may contribute to the development of depression in both children and adults. Researchers from Ohio University found that those who watch TV or use screens late at night are more likely to suffer from mood disorders. The dim light emitted by screens in the dark can negatively impact one's emotional state. Even watching TV programs like melodramas or tragic love stories may contribute to a sense of negativity. Additionally, excessive TV watching disrupts sleep quality, which is essential for health. The light from the TV stimulates the brain and reduces melatonin production, a hormone responsible for sleep. Melatonin is naturally released most during the night when the body is at rest. Watching too much TV also disrupts this balance, leading to fatigue and shallow sleep. It's best to avoid screens like TVs or phones when it's time to sleep, especially once the lights are off.

You might think that rubbing your eyes is a common and harmless way to relieve discomfort from things like itching or foreign particles. However, this action can actually cause serious harm to your eye health. Although it may feel relieving in the moment, rubbing your eyes too vigorously can cause blood vessels to rupture, leading to redness and irritation. This not only affects the aesthetics of your eyes but can also make them uncomfortable. Additionally, touching your eyes with your hands can transfer bacteria to your eyelashes and eyelids, increasing the risk of eye infections. Instead of rubbing your eyes directly, try gently massaging the area around your eyes with your fingers to soothe them without introducing bacteria. Rubbing your eyes increases the risk of conjunctivitis or other eye infections. Many people instinctively rub their eyes when they feel something in them, but this friction between the foreign object and the cornea can damage it. Frequent eye rubbing can also contribute to vision problems. When you rub your eyes with them closed, the pressure builds up behind the eyeball, changing the curvature of the cornea, which can lead to astigmatism or worsen your vision. If you're nearsighted and often rub your eyes, your eyesight may deteriorate more quickly. Those with myopia should be particularly cautious as their eyeballs are thinner than normal, and excessive pressure can potentially cause the retina to detach. While this is rare, it is still a possibility. Eye rubbing can also weaken the skin around your eyes, leading to sagging eyelids and even affecting your entire facial appearance. Moreover, it's a common cause of dark circles under the eyes. So, instead of rubbing your eyes, use a cold compress when you have something in your eye or to relieve irritation.