What to Expect During LASIK Eye Surgery?
What to expect before, during, and after surgery will vary from doctor to doctor and patient to patient. The US FDA provides a compilation of patient information developed by manufacturers and healthcare professionals, but cannot replace the dialogue you should have with your Beverly Hills Lasik surgeon. Read this information carefully and with the checklist, discuss your expectations with your doctor.
The surgery itself should take less than 30 minutes. You will lie on your back in a reclining chair in an exam room containing the laser system. The laser system includes a large machine with a microscope attached to it and a computer screen.
A numbing drop will be placed in your eye by a skilled Lasik surgeon Los Angeles laser eye surgery experts tell us, the area around your eye will be cleaned, and an instrument called a lid speculum will be used to hold your eyelids open.
Your doctor may use a mechanical microkeratome (a blade device) to cut a flap in the cornea. If a mechanical microkeratome is used, a ring will be placed on your eye and very high pressures will be applied to create suction to the cornea. Your vision will dim while the suction ring is on and you may feel the pressure and experience some discomfort during this part of the procedure. The microkeratome, a cutting instrument, is attached to the suction ring. Your doctor will use the blade of the microkeratome to cut a flap in your cornea. Microkeratome blades are meant to be used only once and then thrown out. The microkeratome and the suction ring are then removed.
According to a top Lasik doctor Los Angeles laser eye specialists may use a laser keratome (a laser device), instead of a mechanical microkeratome, to cut a flap on the cornea. If a laser keratome is used, the cornea is flattened with a clear plastic plate. Your vision will dim and you may feel the pressure and experience some discomfort during this part of the procedure. Laser energy is focused inside the cornea tissue, creating thousands of small bubbles of gas and water that expand and connect to separate the tissue underneath the cornea surface, creating a flap. The plate is then removed.
You will be able to see, but you will experience fluctuating degrees of blurred vision during the rest of the procedure. The doctor will then lift the flap and fold it back on its hinge, and dry the exposed tissue. The laser will be positioned over your eye and you will be asked to stare at a light. This is not the laser used to remove tissue from the cornea. This light is to help you keep your eye fixed on one spot once the laser comes on.
When your eye is in the correct position, your doctor will start the laser. At this point in the surgery, you may become aware of new sounds and smells. The pulse of the laser makes a ticking sound. As the laser removes corneal tissue, some people have reported a smell similar to burning hair. A computer controls the amount of laser energy delivered to your eye. Before the start of surgery, your Beverly Hills Lasik eye doctor will have programmed the computer to vaporize a particular amount of tissue based on the measurements taken at your initial evaluation. After the pulses of laser energy vaporize the corneal tissue, the flap is put back into position.
A shield should be placed over your eye at the end of the procedure as protection, since no stitches are used to hold the flap in place. It is important for you to wear this shield to prevent you from rubbing your eye and putting pressure on your eye while you sleep, and to protect your eye from accidentally being hit or poked until the flap has healed.
Andrew I. Caster, M.D. has performed over fourteen thousand procedures to correct nearsightedness, farsightedness, and astigmatism. Dr. Caster is widely considered one of the most knowledgeable Lasik surgeons in the United States. Los Angeles Magazine selected Dr. caster as “The Best Lasik Surgeon in Los Angeles” and W Magazine listed him as one of two top Lasik surgeons in the United States. For more information please visit: http://www.castervision.com/
Article Source:http://www.articlesbase.com/vision-articles/what-to-expect-during-lasik-eye-surgery-1113003.html
How Does Lasek Work?
LASEK which is an acronym for Laser Assisted Sub-Epithelial Keratomileusis is one of the younger techniques for executing eye surgery and rectification of vision.
LASEK as an surgical procedure is worthy for all of those that can not get the more frequent surgery, LASIK, because of several grounds, including to fragile cornea or too straight cornea. External factors, such as line of work may play a role in the selection of surgical process method. For instance, athletes and airplane pilots may fair better without a flap in their cornea.
If you want to do an LASEK surgical procedure on your eyes you are most likely above 18 years old, or that your prescription glasses or contacts hasn’t varied for at least a year. If that is the case, anyone with Myopia (short-sight), Hyperopia (long-sight) or Astigmatism can do the the surgical procedure.
Before we go through the how you eye function. Our eyes are very much dependant on light. If there wasn’t some light you would not be able to visualize at all. When the light rays hit our eyes of the outside cornea it is bend, or refracted so that it becomes adjusted on the inside and back of the eye, the retina. The retina is where the “picture” is created and where the optic nerve pick up the picture and transmit it to the mind where we “see” it.
If you have any kind of the above named vision problems the flexing, or refraction of light is the problem that causes you vision to go bad. The light rays become cracked and the picture on the optical nerve go out of of focus.
Omitting any pre- and post examinations the following will in a great sense deal with how a LASEK process is executed.
To commence you will have anesthetic drops in your eyes to take away any pain during the surgical process. Next, an lid speculum is attached to the eyelids to hold them apart through surgical process and so that the doctor doing the surgery may have full access to the eye during the procedure.
Next, a tiny retinal cone is placed on your eyes outer surface off the cornea. In this retinal cone a few drops of a mild alcohol solution is dropped. This alcohol softens the outer layer of the cornea. Within second the doctor then removes the alcohol and the area is rinsed in good order. The doctor may now take away the outer surface of the cornea and reveal the central cornea layer, called the stroma. As you can read from the description no cutting tools is used around your eye during the procedure. The outer surface of the cornea is just lifted back once the operation is finished.
The next stage of of the operation is when the laser is employed. In nearly every surgery a special laser is applied, called the Excimer laser. This laser will send pulsations of UV-light into the eye. This UV-light is used to evaporate enough of the central cornea layer to remold it as much as needed to rectify the vision.
When the laser has completed its job the cornea surface is put back and a protecting bandage lens is put in to protect the initial healing period. This lens is taken away inside a few days, and inside a workweek, or two you are able to drive and work again.
The man behind this article about LASEK is Andrew Millsap. He is a freelance article writer and also a happy LASEK patient. Article Source:http://www.articlesbase.com/vision-articles/how-does-lasek-work-1075859.html