The eyeball can be considered to be a sphere with restricted flexibility. The gelatinous fluid the sphere contains gives it a certain amount of internal pressure, determined by the quantity of the aqueous humor—which in turn is produced by the ciliary body. After being secreted, first it flows into the back chamber, then through the pupil into the front chamber, before being absorbed by tissues between the back of the cornea and the iris. If the rates of production and absorption become unbalanced, this can affect the eye’s internal pressure.
When these two rates are equal, however,—that is, when the amounts of the produced and absorbed aqueous humor are equal, due to the continuous flow of fluid—the volume of fluid within the eye does not change. But if the production increases while the flow of absorption is reduced or somehow obstructed, pressure within the eye builds.
To recap: This fluid is produced at a discrete quantity, and the same amount of excess is absorbed. More importantly, this process is constant, ongoing in every human eye.
In this respect, the eye is similar to an aquarium that’s filled at one end while it empties at the other: If the flow of water is blocked, it will overflow. However, if the water from the source is cut off, then the aquarium will dry up. Likewise, the amount of liquid contained in the tanks in many industrial and chemical plants, is maintained with the use of computerized control systems. These systems, demanding highly delicate measurements and calculations, are programmed and supervised by specialized engineers. Any disorder in the system can lead to catastrophe.
To ensure the balance in such a small volume as the fluid within the eye, measurements and calculations need to be even more delicate and precise. The slightest inaccuracy, even smaller than mere millimeters, would result in blindness. In a healthy eye, however, these calculations and the cycle of fluid in the eye remain balanced throughout a lifetime. That the fluid exists is a miracle, but the fact that this very fluid is carefully produced and accurately absorbed is an even greater miracle that one should reflect on deeply.
But what if the sensitive balance of eye fluid is disrupted, as in an overflowing aquarium? When the fluid is not absorbed properly or the production of fluid is increased unnecessarily, the result is a quite painful condition known as glaucoma, marked by abnormally high pressure within the eyeball. This causes intense discomfort and sometimes loss of vision. The eyeball inflates like a balloon ready to burst, and the smallest impact can rupture it.
As with most other bodily processes, it’s natural not to be aware that your eye fluid is constantly being secreted into, and absorbed out of, your eye—until you read this book.(the link below):
http://fs.harunyahya.net/popup/Download.php?WorkNumber=3536&Format=pdf
Some people, however, learn about the presence of this fluid the hard way, by developing glaucoma. Like any critically ill person, they realize how much of a blessing good health is and, as a last resort, turn to God.
You differ from those in such a situation, in that you learned of this miracle by reading this book, rather than through developing the disease and suffering the pain. But this doesn’t mean you’ll never experience pain in your life. If God desires it, He may impose such a condition or even a more painful one on you at any time, so that you may remember the value of good health and be thankful. But the truly acceptable way is to turn to God without waiting for an illness—to be grateful to Him, and to remember and glorify Him at all times.
What will those who dream up lies against God think on the Day of Resurrection? God shows favor to mankind but most of them are not thankful. (Qur’an, 10: 60)
Useful link:
THE MIRACLES OF THE QUR’AN:(Video)
http://www.harunyahya.com/m_video_detail.php?api_id=1267
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Woody Allen’s quirky futuristic film “Sleeper” released in 1973 had an amazing scene where Dr. Melik, portrayed by Mary Gregory, and Dr. Aragon, characterized by John McLiam, have a conversation about Allen’s character who just woke up after 200 years to a future he doesn’t recognize. This particular scene was especially prescient in light of the constant changes we see in the research about what is healthy for us and what is not. Here’s the transcript of the enlightening exchange: Dr. Melik: This morning for breakfast he requested something called “wheat germ, organic honey and tiger’s milk.” Dr. Aragon: [chuckling] Oh, yes. Those are the charmed substances that some years ago were thought to contain life-preserving properties. Dr. Melik: You mean there was no deep fat? No steak or cream pies or… hot fudge? Dr. Aragon: Those were thought to be unhealthy… precisely the opposite of what we now know to be true. We’re probably a lot closer to this being a reality than anything else we’ve ever seen from the entertainment culture! For more information about why consuming fat, steak, and cream are healthy, check out www.livinlavidalowcarb.com and prepare to have your eyes opened to the truth!
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Tags: aqueous humor, chemical plants, ciliary body, computerized control systems, continuous flow, delicate measurements, discrete quantity, gelatinous fluid, human eye, production increases