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Tests & Procedures

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Click a letter to see a list of medical procedures beginning with that letter.

Do You Know How to Preserve Your Eyesight?

Can you harm your vision by sitting too close to the TV? Why is vitamin A good for your eyes? Who is at risk for cataracts? Find the answers by taking this quiz.

1. Which of these habits harms your vision?

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These habits tire eye muscles. But they won't permanently damage eyesight.

A. Sitting too close to a TVB. Reading without enough lightC. Reading too longD. None of the above

2. Healthcare providers advise people not to look directly at the sun. What is it about sunlight that damages eyes?

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Wear sunglasses that screen 100% of UVA and UVB rays when outdoors during the day.

A. Ultraviolet radiationB. HeatC. MicrowavesD. Brightness

3. Getting too little of this vitamin can cause problems with night vision. Which one?

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A lack of vitamin A severe enough to cause night blindness is rare. But any disease or condition that interferes with how the body absorbs vitamin A can affect night vision.

A. Vitamin KB. Vitamin EC. Vitamin AD. Vitamin D

4. Safety experts advise wearing safety goggles during which of these activities?

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Lawnmowers cause more than 5,000 eye injuries each year, according to Prevent Blindness America. Stones and other objects can shoot out from beneath a mower, bounce off a curb or foundation, and hit the person mowing. A basketball that goes in an unintended direction can fracture an eye socket, scratch a cornea, or cause other eye damage. Household chemical can damage the eyes if the chemicals accidentally splash. Be cautious when opening and using detergents, bleaches, ammonia, and oven and drain cleaners.

A. Mowing the lawnB. Playing basketballC. Cleaning with chemicalsD. All of the above

5. Which of these diseases is a major cause of blindness among older Americans?

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Glaucoma, diabetic retinopathy, and some forms of age-related macular degeneration (AMD) can be successfully treated if diagnosed early enough. That's why it is important to have your vision routinely checked by an eye care provider.

A. GlaucomaB. Age-related macular degeneration (AMD)C. Diabetic retinopathyD. All of the above

6. Which of the following is true about glaucoma?

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In most cases, increased pressure inside the eye causes glaucoma. Unless this pressure is controlled, it can damage the optic nerve and lead to permanent vision loss. People at risk for glaucoma include African Americans older than 40, anyone older than 60, and those with a family history of glaucoma.

A. It is a condition with no symptoms early onB. It damages the optic nerveC. Vision lost from glaucoma can't be restoredD. All of the above

7. What causes cataracts?

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Scientists have found a close tie between cataracts and diabetes, using steroids such as prednisone, and aging. Smoking also raises the risk. So does being out in extremely bright sunlight for long periods of time. Fishermen fall into this group.

A. DiabetesB. AgingC. Medicines (such as steroids)D. All of the above

8. AMD is the most common cause of vision impairment in Americans ages 60 and older. How does it affect eyesight?

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In AMD, the cells in the central portion of the retina (macula) gradually stop working. This causes a person's central vision to become fuzzier. Eventually AMD makes it impossible to read, drive, or do close-up work. Most people with AMD still have their peripheral vision.

A. Central-vision lossB. Peripheral-vision lossC. Night-vision lossD. None of the above

9. Research shows people can reduce their risk of AMD and cataracts by eating which of these?

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Make sure your diet includes plenty of these, as well as other vegetables and fruits.

A. Red meatB. Leafy green vegetablesC. Dairy productsD. All of the above

10. A 7-year study found people with AMD slowed progress of the disease by taking which of these nutritional supplements?

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A high-dose combination of these supplements lowered the risk for advanced stages by 25%, according to the study. The study was sponsored by the National Eye Institute. Zeaxanthin, a carotenoid found in spinach and greens, also helps. The wet form of AMD, the less common form, can also be treated with laser therapy or medicine. Several medicines that are injected into the eye have been approved to slow or block the growth of new blood vessels in wet AMD, thus preserving sight.

A. Vitamins C and E, lutein, and zincB. Vitamin CC. IronD. Glucosamine and vitamin K

Your score was:

Online Medical Reviewer: Haupert, Christopher L, MD
Online Medical Reviewer: Novick, Tara BSN MSN
Online Medical Reviewer: Seltman, Wendy MD

Date Last Reviewed: 9/1/2022

© 2000-2024 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

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