EYE – Second Timers – V2

LASIK: Lasik eye surgery is surgery performed using lasers. The cornea is cut by a loser then it  is peeled back. 

LASIK:  The pulsating speed of the laser used in Lasik is so fast that it will burn the cells away without causing any heat to transfer to the surrounding neighboring cells.  Because none of the surrounding cells are damaged, when the cornea is folded back on itself, it will grow back together.

LASIK: The iris will grow back together again after laser surgery because the cells on the side of the vaporized cells aren’t damaged. If you tried to make the cornea thinner by burning away living cornea cells by a hot needle, the cornea wouldn’t grow back together because cells left on the cornea would be dead ones and dead cells can’t grow back together. 

LASIK: During the surgery, lasers pulsing at a femtosecond are shot at the cornea of the eye for six minutes.

LASIK: These etching excimer lasers are controlled by computers so they make cuts extremely precise.  These laser bursts cut a circular flap on the top layer of the cornea very quickly.

LASIK: The flap of the cornea is then lifted and a computer-guided 193 nanometer UV laser shapes the cornea.  The process of shaping is made possible by the tracking ability of the laser. It tracks the eyes movement at 4000 times per second while vaporizing unwanted parts of the stroma from the cornea. Scientists hope to perfect this in the years to come so we will be able to see at 20 feet what we now see at 5 feet!

CORNEA PUMPS:  Your cornea is continually drawing in water like a sponge by osmosis from both sides of it .  This water is used for a variety of functions, from lubricating the surface of the cornea with tear water or feeding the cornea by aqueous humor liquid underneath it.

CORNEA PUMPS:  The incoming water into the cornea moves the collagen ropes apart like how you spread your fingers apart.  If collagen was allowed to spread freely like your fingers can spread apart, this would act like a wall that stops light from coming into your eye.  NOTE: The collagen proteins running through the cornea are 6000 times thinner than a red blood cell but are 100 times stronger than a steel cable of the same thickness!

CORNEA PUMPS: To prevent this spreading of the collagen from making you blind, you have tiny cellular fusion reactors in your cornea that continually pump water out of the spaces which makes it so you can see.

CORNEA PUMPS: When a dog or a cat–or a person dies,  their eyes turn a whitish color. This is because the tiny pumps stop working and the cornea of the eye fills with water. This causes light to no longer pass through, giving the eye the cloudy color.