LASIK
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The LASIK surgeon should also find this site interesting because we have also included a news component which is updated daily. Our news component consists of news from the realm of LASIK such as new developments and breakthroughs, news about eye health, current eye research, optometry, and ophthalmology. We believe that the information provided here will serve both the LASIK surgeon and the LASIK candidate well.
Here you will also find our chat room about LASIK and related topics. Our chat room can be used by anyone who has an interest in LASIK. Our chat room allows for an unlimited number of users. All we ask is that the conversations stay within the realm of LASIK and related topics.
Here we also provide a book store. Our book store consists of a large collection of books about LASIK, general eye health, and alternative forms of vision correction. So if you want to learn more about these interesting topics, we invite you to browse our book store. Anyone who is considering LASIK for vision correction should purchase at least one book on the subject. Knowledge is the key in terms of making the right decision with regards to whether LASIK is right for you.
Our goal here is to not sell you on LASIK, but to simply provide you with the information you need so that you can make an informed decision. This is why on this page you will see ads for LASIK and for natural vision correction. We provide the information, and let you follow the path you feel you should take in terms of vision correction without glasses.
LASIK - Discussion
Our discussion here is made up of the following components. In order to understand what LASIK surgery is all about, first we will examine basic eye physiology. To understand LASIK , you need to have a basic understanding of how the eye works. We will then examine the causative factors for decrease visual acuity. We will look at how LASIK provides for vision correction, and we will look at the basic procedure for LASIK . Finally, we will look at the potential risks involved with LASIK, followed by today’s LASIK news.
Normal and Atypical Eye Anatomy
Image courtesy of Lahey Clinic Foundation
The four most important components of the human eye are the cornea, lens, retina, and photoreceptor cells. Each of these has a specific function. The cornea’s job is to simply focus the light rays coming from the image to the back of the retina where the photoreceptor cells are located. The lens focuses the image further, the same way the lens of a camera focuses the image onto film. In the case of the eye, the image is focused inverted. The photoreceptor cells are made up of cells called rods and cones. Once the image is focused onto the photoreceptor cells, electrical impulses traverse along the optic nerve to the optical region of the brain where the image is placed right side up. Obviously this is a simplified version of how the eye produces an image, but for the LASIK candidate, providing physiological details beyond what is discussed here would serve no purpose.
Atypical eye physiology results in a decrease in visual acuity and therefore the need for glasses or contacts? The three most common eye problems are nearsightedness, farsightedness, and astigmatism. In all these cases, the cornea has a shape which is atypical, and the light is not focused onto the retina. In the case of nearsightedness, the image becomes focused in front of the retina. In farsightedness, the opposite occurs where the image is focused behind the retina. In astigmatism, the cornea has such a shape that the image is focused at two points on the retina instead of the usual one point.
How does LASIK surgery correct for these problems. When laser energy is applied to the cornea, changes occur at the molecular level which results in a change in the shape of the cornea. The alterations which are occurring at the molecular level are outside the purview of this website, but it is suffice to say that these changes result in correcting the shape of the cornea so that the image will be focused on the retina. So this is how LASIK surgery works, and it works very well most of the time.
The laser that is used for LASIK surgery is called an excimer laser. An excimer laser is called a “cool” laser in that it does not produce heat. It is the energy from this laser which results in changes occurring at the molecular level within the cornea. Actually, there are a number of laser types which have been approved by the FDA for LASIK which are all “cool” lasers which can be found at LASIK Eye Surgery. Lets now take a look at the procedure employed for LASIK surgery.
LASIK - Procedure
Image courtesy of Medical Research Foundation
1) In the first step, a layer of epithelium tissue must be cut and pulled back in order to expose the cornea for laser application. This flap is created using a motorized blade.
2) Once the cornea is exposed, the excimer laser energy can be applied to the cornea. This results in the cornea going back to a normal shape and therefore vision correction is achieved. The time needed for the actual laser application is very short.
3) After the laser energy application, the flap that was created in step one is pulled back to it’s original position over the cornea.
4) Sutures are not required for the flap to stay in position and the flap serves as band aid during the healing process.
Difference Between LASIK and LASEK
LASIK and LASEK are actually slightly different procedures, but the basic procedural steps are the same. In the case of LASIK, the thickness of the tissue which needs to be cut, is thicker compared to LASEK. In LASEK, an ultra-thin layer of tissue is cut. In both cases, this cut is needed in order to produce a flap which can be pulled back to expose the cornea. So really the procedures are identical except for this one difference. Typically, LASEK is used for individuals who have a very thin layer of tissue on top of the cornea.
What Are the Risks For LASIK and LASEK
Image courtesy of Dr John Hill
LASIK and LASEK surgery is not without risks. It is important that you discuss the possible risks associated with LASIK/LASEK surgery with your surgeon. You have a right to know the specific track record of the LASIK/LASEK surgeon you choose. What his/her success rate. What percentage of his/her patients develop complications. You obviously have a right to know this information since you are entrusting the viability of your eyes in his/her hands. Statistically, in the late 1990’s, there was a mean percentage of complications at around 5%. LASIK surgeons are currently reporting complications in 1% of patients. Some current studies are reporting complications in 3% to 6% of patients. The reported figures for safety and efficacy are open to interpretation. So what are some of the complications that can develop.
1) Increased sensitivity to light.
2) Various halos or glare. These conditions occur if light enters the eye around the edge of the treatment area. They can usually be corrected with an additional treatment.
3) Over correcting or under correcting.
4) A type of astigmatism can develop due to the cornea healing in a wavy configuration.
5) Regression
6) Increased contrast sensitivity
So if complications from LASIK do occur, your complication will most likely be one of the above. It should be noted that when complications do occur, many times they are due to cutting edge irregularities when the flap is produced. A new company called IntraLase has basically eliminated these irregularities by producing a laser which can cut the epithelial tissue on top of the cornea, instead of a motorized blade. The use of the IntraLace laser has resulted a reduction in the number of complications. The draw back to the use of this laser is that it makes the procedure more expensive. Most of the time the LASIK/LASEK candidate is pleased with the results. But as in all surgeries, risks do exist.
LASIK - Conclusion
To conclude, today LASIK/LASEK is considered a viable method for the obtainment of visual acuity. Many people from all walks of life have had the procedure completed and most are happy with the results. The United States military currently is providing free LASIK/LASEK surgery for soldiers. Many professional athletes and movie stars have had the procedure completed and by and large they are happy with the results. The procedure is not without risks, but for those individuals who can not or for cosmetic reasons will not wear glasses, LASIK/LASEK provides a viable alternative for achieving visual acuity. Talk to several LASIK/LASEK surgeons, read about the procedure, verify the statistics, and you will then know if LASIK/LASEK is right for you.
LASIK - Videos About LASIK Surgery
What is Lasik and is Lasik Safe? A Diversity of Perspectives
Directory of LASIK/LASEK Surgeons Who Practice Within the Chicago Area
| Mitchell A. Jackson, MD | (847) 356-0700 (888) 356-0700 Lake Villa, Illinois |
| Herman D. Sloane, MD | 877 24 LASIK (5 2745) Oak Brook, Illinois |
| Robert L. Epstein, MD | 800-I-CAN-SEE (800-422-6733) McHenry, Illinois and Niles, Illinois |
| William M. Reiff, MD | (847) 844-8866 Elgin, Illinois |
| Gerald Horn, MD William Fagman, MD David Aymond, MD | (877) 350-3937 Naperville, Illinois Oak Brook, Illinois Schaumburg, Illinois |
If you are a LASIK/LASEK surgeon and you practice within the Chicago area, and you are not listed here, please email me at Thomas Sullivan and I will include you on this list.
Additional Links
Consumer Guide to LASIK Eye Surgery
Additional Source for Finding a LASIK Surgeon
For information about how to maintain healthy eyes go to 10 Steps to Healthy Eyes.
Today’s News About LASIK/LASEK, Eye Health, Optometry, and Ophthalmology
MedicineNet Eyesight General
Copyright 1995-2009 MedicineNet, Inc. All rights reserved.
MedicineNet Eyesight General
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Medscape Ophthalmology Headlines
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Eye Health / Blindness News From Medical News Today
Copyright 2009 Medical News Today
Latest Eye Health / Blindness News From Medical News Today.
Treatment That Significantly Slows Progression Of Eye Damage In Persons With Type 1 Diabetes - University Of Minnesota
University of Minnesota Medical School researcher Michael Mauer, M.D., has found a treatment that significantly slows the progression of eye injury in people with type 1 diabetes, a common complication caused by this disease. By administering an antihypertensive, medication commonly prescribed to treat high blood pressure, Mauer and colleagues were able to slow progression of diabetic eye damage in more than 65 percent of participants involved in the study.
Clue To Normal-Tension Glaucoma; Herpes Infection And Corneal Transplants
The July issue of Ophthalmology, the journal of the American Academy of Ophthalmology, includes two studies that may influence clinical treatment of serious eye conditions. One study reports on silent cerebral infarcts (SCI) incidence and visual field loss in patients with normal-tension glaucoma; the other correlates inflammation biomarkers with corneal transplant rejection in herpes simplex patients.
New Drug That Could Dramatically Speed Up The Elimination Of River Blindness Across Africa Begins Clinical Trial
A clinical trial is being launched in three African countries of a drug that could eliminate onchocerciasis, or river blindness, one of the leading infectious causes of blindness across Africa. The drug, moxidectin, is being investigated for its potential to kill or sterilize the adult worms of Onchocerca volvulus, which cause onchocerciasis.
Echo-Location In Humans Developed By Spanish Scientists
A team of researchers from the University of Alcalá de Henares (UAH) has shown scientifically that human beings can develop echolocation, the system of acoustic signals used by dolphins and bats to explore their surroundings. Producing certain kinds of tongue clicks helps people to identify objects around them without needing to see them, something which would be especially useful for the blind.
AGTC And National Neurovision Research Institute Collaborate, Funding Research In Two Genetic Retinal Diseases
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Eye Laser Surgery News
Eye Laser Surgery news as it happens. Lasik articles and any other eyecare related information
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Do you want your [...]
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Because of technology that always developing to make human’s life easier [...]
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Colour of the frames:
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In this article, let me compare PRK [...]
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LASIK: Revolutionising correction of refractive errors
LASIK, an unprecedented advancement in eye care, offers people a safe and simple opportunity to see the world clearly, minus the inconvenience or discomfort of scratched or lost contact lenses, or the blocked side vision of spectacles. In simple term LASIK is a revolutionary laser technique for correction of refractive errors.
LASIK surgery works wonders for Packers' Ferguson
Ferguson said he went to three doctors seeking a panacea for the headaches. One suggested that LASIK surgery probably would solve his eye problem and just might curb the headaches.
New, Improved LASIK Surgery
Just how much better this new “wavefront-guided LASIK” works isn't proven yet, but it's causing excitement among eye surgeons who say the three-dimensional maps let them customize treatment in a way never before possible.
Opening Your Eyes To LASIK
More and more people are going under the laser to shed their glasses and contact lenses. So the Eye Surgery Education Council has issued new guidelines to help patients determine whether they could be candidates for laser eye surgery.
BLADE-FREE LASIK SURGERY
Are you near-sighted? Far-sighted? LASIK eye surgery could rid you of your glasses. But if fear of going under the blade is stopping you -- stop worrying. Now, a new blade-free approach.
Low-Cost LASIK Surgery
This year, it's estimated that more than 1½ million people will have corrective laser eye surgery and the price of that surgery can vary tremendously, but cheaper is not always better.
Research warns against sleeping in contact lenses
Sleeping in contact lenses can lead to an increased risk of severe eye infection, new research suggests. But new generation contact lenses, the investigation reveals, perform better in this regard than their predecessors. The University of Manchester study found that wearers who failed to remove their lenses before bedtime had an increased risk of developing keratitis than those who routinely took out their lenses before going to sleep
Corneal Perforation With Secondary Congenital Aphakia in Peters Anomaly -
To describe two cases of secondary congenital aphakia in association with Peters anomaly...Conclusions: Secondary congenital aphakia from corneal perforation should be considered in the presentation of severe Peters anomaly.
Bacterial Populations on Silicone Hydrogel and Hydrogel Contact Lenses after Swimming in a Chlorinated Pool
Conclusion: It appears that wearing a hydrophilic lens while swimming allows accumulation of microbial organisms on or in the lens, regardless of lens material. Swimmers should be advised to wear tight-fitting goggles if lenses are worn while swimming, and thorough disinfection of the lenses before overnight wear seems prudent...
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