1. Wear sunglasses 

Exposing your eyes to ultraviolet rays may cause damage over time. Wearing sunglasses can block harmful UV light, lowering your risk of eye diseases like cataracts, sunburn, eye cancer and growths around the eye, per the American Academy of Ophthalmology. Polarized glasses with smoke or gray lenses may offer the best protection against the sun's rays and reduce glare.

2. Take screen breaks

Prolonged screen time can cause dry eyes, pain in the neck and shoulders, blurred vision, headaches and digital eye strain, or computer vision syndrome. The American Optometric Association recommends using the 20-20-20 rule to prevent computer vision syndrome. Every 20 minutes, look at something at least 20 feet away for 20 seconds.

3. Take book breaks, too

Screen time isn't the only way to strain your eyes. When you read a book, you probably hold it up close for long periods, too. Both activities can lead to nearsightedness, or myopia, which means far-away objects are blurry while up-close things are clear. Just like you should use the 20-20-20 rule to take screen breaks, you should also use this rule for book breaks. If you find yourself engrossed in what you're reading or doing on the computer, set an alarm so you don't miss your 20-minute break.

4. Move your body 

Regular exercise can provide eye health benefits, such as promoting healthy blood vessels and lowering your risk of developing glaucoma and diabetic retinopathy, the AAO reports. The CDC recommends at least 150 minutes of moderate aerobic activity every week, plus two days of strength training for your muscles. You can also practice eye exercises to reduce tension and eye strain while sitting at your desk