TOP 10 THINGS WE DIDN’T KNOW ABOUT OUR EYES-FORWARD. Few people could argue that without our 5 senses life wouldbe pretty dull. All our senses areextremely important but I think if you asked most people which sense would they least like to lose they wouldprobably say their vision.
As with most of our abilities, our vision is something thatmany of us take for granted. If youstop and think for a moment, you will realize that just about everything we do in our day to day lifeinvolves our vision. In this article Iam going to try and see if I can get you to start thinking a little bit more about your eyes. Listed below is my top 10 list of weird and wonderfulthings you didn’t know about your eyes 10. Everyone needsreading glasses as they get older This is assuming that you already have perfect distancevision. If you are currently readingthis article and are under 40 years of age with perfect distance vision, I can say with absolute certainty that youwill need reading glasses at some point in the future. For about99% of the population the age that you will first start needing reading glasses is between 43 and 50 years old. This is because thelens in your eye slowly loses its focusing ability with age. In order to focus things near toyou, your lens has to change from a flat to a more spherical shapeand it loses the ability to do this as you get older. As youget to around 45 years old you will start to hold things further away from you to keep them focus. 9. The lens in your eyeis quicker than any camera lens Just behind the pupil sits the eyes natural lens, whosefunction is to focus on the object you are looking at. Just take aminute to glance around the room and think about how many different distances you are focusing at. Every time you do this, the lensin your eye is instantly changing focus without you even being aware ofit! Compare that with a camera lens which takes a few secondsto focus between one distance and another. Just be thankful that the lens in your eye is as quick as it is,otherwise things would be continually going in and out offocus. 8. Your eyes are fullydeveloped by the age of 7 years old By the age of 7 yearsold our eyes are fully developed and are physiologically the same as adults eyes. It is for this reason that it isvitally important to pick up a lazy eye before we reach this age. Theearlier a lazy eye is diagnosed, the greater the chance it will respond to treatment, as the eyes are still developing and capable of an improvementin vision. Beyond7 years old no amount of treatment will result in any improvement in vision. My note- With moderntechnological development it is possible to treat eye vision at any age 7. You blinkapproximately 15,000 times each day Blinking is a semi- involuntary function meaning we do itautomatically, but can also choose to blink if we so require. Blinking is an extremely important function of your eyes asit helps remove any debris on the surface of your eye, by spreading fresh tears over them. These tears help tonourish your eyes with oxygen and also have important anti bacterial properties. You can think of the function of blinking as being similarto the action of the windscreen wiperson your car, cleaningand removing everything to keep you seeing clearly. 6. Everyone gets cataracts as theyget older People dont realize that cataracts are just a normalconsequence of getting older and everyone gets them at some pointin their life. You can think of cataracts as being similar to getting greyhair, in that it is just a normal natural age change. The average age people first get cataracts is about aged 70 yearsold and by 80 years old you are guaranteed to havecataracts. In the same way that you could not find any aged 80 yearsold without grey hair, it would be equally impossible to findanyone over 80 years old without cataracts. Cataracts refer to a gradual clouding of the lens in youreye and typically take about tenyears from onset to them needing treatment. 5. Diabetes is oftenfirst detected during an eye test People who suffer from type 2 diabetes (the type youdevelop later in life) are oftensymptom free, meaning they often don’t even know that they have it. This type of diabetes iscommonly picked up during an eye test as it can be seen as tiny hemorrhages fromleaking blood vessels at the back of your eye. Thiscertainly is good reason to get your eyes tested regularly. 4. You see with yourbrain and not your eyes - The function of your eyes is to collect all therequired information about the object you are looking at. This information isthen passed from your eye to the brain via the optic nerve. It is the brain (visual cortex) where allthis information is analyzed toenable you to see the object in itsfinished form. This is not to say that your eyes don’t play an important roleas they certainly do. My note- if at all brainis perfect with out eye information cannotbe passed. So it is equally important. 3. Your eyes can adaptto blind spots in your vision Certain eye conditions such as Glaucoma and certain generalhealth conditions such as having a stroke, can lead to youdeveloping blind spots in your vision. This would be extremely debilitating ifit was for your brain and your eyes ability to adapt to make these blind spotsdisappear. It does this by suppressing the blind spot in your affectedeye and letting your other good eye fill in the gap. It is adaptation like this that makes youreyes so resilient. 2. 20:20 vision is notthe best vision you can have Whenpeople hear the phrase 20:20 vision they assume that this is the best vision possible. However this is not true as 20:20 vision refers to what theaverage adult should be able to see. If you imagine a typical eye test chart the 20:20 vision is probably onlythe line second from the bottom. The line below it is even smaller than 20:20 vision and wouldmean you have 20:16 vision. So don’t be so impressed next time someonetells you they have 20:20 vision! My note- During eyetesting the lab technician would ask to read the lines from top to bottom. If you are not able toread the last two lines, normally, not much bothering is done. 1. Your eyes water whenthey are dry I know this might sound crazy but this is one of strangefacts about your eyes. Your tears are made up of 3 different components andthey are water, mucus and fat. If these3 components are not in exactly the right quantities, your eyes can become dry as a consequence. Your brain responds to this drynessby producing extra water and hence youreyes water. A posting by Sri"KC Ravi" [email protected] on Wed Nov 24, 2010 isforwarded today 2-8-2021. R. Gopala Krishnan -- You received this message because you are subscribed to the Google Groups "Thatha_Patty" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/thatha_patty/452973351.1549554.1627917031356%40mail.yahoo.com.
