2. Top 10 Things You Didn’t Know About Your Eyes By Moyea PowerPoint DVD-PPT-SlideShow.com

3. #10 Everyone needs reading glasses as they get older

4. For about 99% of the population the age that you will first start needing reading glasses is between 43 and 50 years old. This is because the lens in your eye slowly loses its focusing ability with age.

5. #9 The lens in your eye is quicker than any camera lens

6. Just be thankful that the lens in your eye is as quick as it is, otherwise things would be continually going in and out of focus.

7. #8 Your eyes are fully developed by the age of 7 years old

8. By the age of 7 years old our eyes are fully developed and are physiologically the same as adult’s eyes.

9. #7 You blink approximately 15,000 times each day

10. Blinking is an extremely important function of your eyes as it helps remove any debris on the surface of your eye, by spreading fresh tears over them. These tears help to nourish your eyes with oxygen and also have important anti bacterial properties.

11. #6 Everyone gets cataracts as they get older

12. The average age people first get cataracts is about aged 70 years old and by 80 years old you are guaranteed to have cataracts. In the same way that you could not find any aged 80 years old without grey hair, it would be equally impossible to find anyone over 80 years old without cataracts.

13. #5 Diabetes is often first detected during an eye test

14. People who suffer from type 2 diabetes (the type you develop later in life) are often symptom free. This type of diabetes is commonly picked up during an eye test as it can be seen as tiny hemorrhages from leaking blood vessels at the back of your eye.

15. #4 You see with your brain and not your eyes

16. The function of your eyes is to collect all the required information about the object you are looking at. This information is then passed from your eye to the brain via the optic nerve. It is the brain (visual cortex) where all this information is analyzed to enable you to ‘see’ the object in its finished form.

17. #3 Your eyes can adapt to blind spots in your vision

18. Certain eye conditions such as Glaucoma and certain general health conditions such as having a stroke, can lead to you developing blind spots in your vision.

19. #2 20:20 vision is not the best vision you can have

20. 20:20 vision refers to what the average adult should be able to see but not the best.

21. #1 Your eyes water when they are dry

22. Your tears are made up of 3 different components and they are water, mucus and fat. If these 3 components are not in exactly the right quantities, your eyes can become dry as a consequence. Your brain responds to this dryness by producing extra water and hence your eyes water.

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