I bet a lot of you have once asked yourself "How am I seeing what's in front of me right now?" during one point of your life. Well you should know that you see with those two shining spheres on your face called eyes, but how do they work?
First, light enters the eye through our lens. The lens then focuses to help us see clearly. Next, the light hits the back of our eye where the image is received by an optical nerve. Once the image is received, it gets sent to our brain where it determines what the image in front of you is.
The most common physical ailments that people suffer from are poor eye vision. What happens when a part of your eye gets scraped or damaged? You can get glasses and contacts, but those tend to irritate many people. Thankfully, there is one more thing to help your eyes. LASIK eye surgery is the answer for people that need to get closer to 20/20 vision. LASIK stands for laser-assisted in situ keratomileusis. This is a refractive surgery, which helps reshape the cornea. How does this surgery work exactly?
Your surgeon focuses on the cornea in your eye in order to try to fix your vision. The shape of your eye's cornea represents how clear your eyesight is. This surgery is meant to reshape your cornea so that you can have perfect eyesight. The process can begin once the doctor has viewed a diagram of your eye. First, they numb your eyes with anesthetics so you won't feel pain of any sort. Next, they place a lid speculum on both of your eyes so the lids will stay open for the whole procedure. An incision measuring ¼ of an inch in depth will be made into your cornea. With the cut made, the surgeon can proceed to use the laser device to reshape your cornea properly and securely. When the light directly hits the cornea tissue, a mini portion of the tissue is vaporized. Finally when the cornea is completely reshaped, the cornea flap is replaced and bonds with the new condition of your eye. Your eyes will eventually heal after a few days and your vision will become clear.
Is this surgery safe? Well it certainly isn't for everyone. The majority of the time, LASIK eye surgery is completely safe. The chances of getting a side affect are less than half of a percent. Getting the surgery is certainly something to think about.
How the human eyes give us the gift of seeing has interested me for a long time. What got me really into researching on this topic was when my sister started to get into nursing school. She began by telling me all these cool facts on human anatomy. Seeing is basically the key to our world. Vision helps us see and if we couldn't, our society would be out of sight.
-M. S.
Sources
My older sister Maria
