Debra Medina Autoclave Sterilizer

Used Sterilizers

How to do Laser Surgery Using Surgical Instruments

When light is not correctively focused precesily on the eye as it should be than laser surgery will be the only way the naked eye can see correctly. Surgeons and there surgical instruments can fix this by using a laser to reshape the curvature on the front surface of the eye.

For top results the surgeon will operate on one eyeball at a time. The surgeon will clean the lid and the lashes and then administers antiseptic drops to freeze the eye and lid. He will then attempt to open the eye lid with a speculum. The surgeon rinses and cleans the eye with a cleanser saline solution from his surgical instrument set. The patient wont feel a thing around the eyeball because everything is frozen.

To avoid infection. The surgeon will now use anti-biotitic drops. Before every operation the surgeon tests the surgical equipment. He fires the laser on a metal plate to test its energy level. The surgeon will then inspect the micro-carotene after he applies more drops. The device is used to lift a very thin layer from the outer surface of the eye. Your cornea is measured by the doctor using his surgical equipment. The surgeon uses the speculum again to prop the lid open then starts the procedure. Using sterile ink the surgeon will mark the eye. It's a reference to mark to be used later.

Next a metal ring is placed around the cornea. The ring is attached to a suction hose so it clings to the eye. This same method can be seen when you clutch a tomato when you cut it. The eyeball is then held steady when the surgeon cuts the tissue. After the surgeon has lubricated your eye he will then mop up the water with an absorbent sponge. Then the micro-carotene is slipped into the slots in the metal suction ring. Within a matter of seconds the device moves across the eye cutting open a thin tiny piece of tissue. Doing this looks like how a carpenters blade trimes off a layer of wood.

The Surgeon uses a sterile sponge from his surgery equipment to keep tears from contaminating the cornea. After this he will fold back a piece of tissue exposing the cornea. Then soaks up the excess fluid, and finally he will start up the laser. at this time the tiny sponge will keep thin tissue moist. The laser is an invisible beam of light fires in 50 pulses a second. Each pulse vaporizes a 1/4 microbe of cornea eye tissue. In order to achieve near perfect 20/20 vision the laser is controlled by a computer program so it knows exactly how to reshape the cornea.

In less than a minute the laser has done its job. Using the ink marks the surgeon made earlier he folds the flap back to its original position. The patient will have distorted vision if the flap doesn't go back to its original position. Using a syringe that flushes the area with sterile water the surgeon carefully smoothes the flap. Within 45 secs the negative pressure inside the cornea sucks the flap back on. The flap then self-seals. Anti-biotitic drops are applied as a preemptive measure and the micro-carotene is applied once again to verify once everything is OK before moving on to the other eye.

When that's done the surgeon uses a powerful microscope to make certain the thin eye tissue is wrinkle free. Lastly the patient will be told by the surgeon to wear protective covers overnight for a week.

... And that's how you do laser eye surgery.

About the Author

A " surgical instruments " editorial is by Matt L.

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