5 Truths About Protecting Your Eyes
Source: The Aging Eye, a Special Health Report from Harvard Medical School
Of your five senses, which one are you most afraid of losing? If you're like most people, your answer is your ability to see. Because our eyesight is so precious, it's no wonder that myths abound about what can damage our eyes — and what can protect them. Here, we debunk five common myths — and tell you how to truly keep your eyes healthy.
Myth: Doing eye exercises will delay the need for glasses.
Fact: Eye exercises will not improve or preserve vision or reduce the need for glasses. Your vision depends on many factors, including the shape of your eyeball and the health of the eye tissues, neither of which can be significantly altered with eye exercises.
Myth: Reading in dim light will worsen your vision.
Fact: Dim lighting will not damage your eyesight. However, it will tire your eyes out more quickly. The best way to position a reading light is to have it shine directly onto the page, not over your shoulder. A desk lamp with an opaque shade pointing directly at the reading material is ideal.
Myth: Carrots are the best food for the eyes.
Fact: Carrots, which contain vitamin A, are indeed good for the eyes. But fresh fruits and dark green leafy vegetables, which contain more antioxidant vitamins such as C and E, are even better. Antioxidants may even help protect the eyes against cataracts and age-related macular degeneration. Just don't expect them to prevent or correct basic vision problems such as nearsightedness or farsightedness.
Myth: It's best not to wear glasses or contact lenses all the time. Taking a break from them allows your eyes to rest.
Fact: If you need glasses or contacts for distance or reading, use them. Not wearing your glasses will strain your eyes and tire them out instead of resting them. However, it will not worsen your vision or lead to eye disease.
Myth: Staring at a computer screen all day is bad for the eyes.
Fact: Using a computer does not damage your eyes. However, staring at a computer screen all day can contribute to eyestrain or tired eyes. People who stare at a computer screen for long periods tend not to blink as often as usual, which can cause the eyes to feel dry and uncomfortable. To help prevent eyestrain, adjust the lighting so it doesn't create a glare or harsh reflection on the screen, rest your eyes briefly every 20 minutes, and make a conscious effort to blink regularly so that your eyes stay well lubricated.
Sunglasses: Accessory or Necessity?
We all use sunscreen to protect our skin during the warmer months, but don't forget to protect your eyes as well. Summertime means more time spent outdoors, and studies show that exposure to bright sunlight may increase the risk of developing cataracts, age-related macular degeneration and growths on the eye, including cancer. The same risk applies when using tanning beds, so be sure to protect your eyes from indoor UV light as well.
The good news is that you can easily protect yourself! In order to be eye smart in the sun, the American Academy of Ophthalmology recommends the following:
- Wear sunglasses labeled “100% UV protection": Use only glasses that block both UV-A and UV-B rays and that are labeled either UV400 or 100% UV protection.
- Choose wraparound styles so that the sun's rays can't enter from the side.
- Wear a hat along with your sunglasses; broad-brimmed hats are best.
- Remember the kids: It’s best to keep children out of direct sunlight during the middle of the day. Make sure they wear sunglasses and hats whenever they are in the sun.
- Know that clouds don’t block UV light: The sun’s rays can pass through haze and clouds. Sun damage to the eyes can occur any time of year, not just in summer.
- Be extra careful in UV-intense conditions: Sunlight is strongest mid-day to early afternoon, at higher altitudes, and when reflected off of water, ice or snow.
Choosing a Sunscreen
CDC, Indoor Tanning
Get Eye Smart
NYSDOH, Indoor Tanning