Posts Tagged ‘Cornea’

What Is The Initial Lasik Eye Exam Like

Wednesday, January 7th, 2009

What is the Initial Lasik Eye Exam Like?

The first significant step before the Lasik surgery is to have a comprehensive eye examination, in order to be sure that you are a good candidate for the Lasik procedure. A map of your eye will be created during this exam. This map is used in order for the Lasik physician to determine how to reshape your eye to give you the clearest post-operative vision possible.

This eye exam will do several things. Your eyes will be dilated in order to see if there are any irregularities within the eye itself. The thickness of the cornea will be measured, and a precise map of the cornea will be generated. The “refractive error” (or the reason why your vision isn’t currently perfect) will be accurately analyzed in order for the Lasik procedure to get the best results possible. Finally, how your eyes generate tears will be closely looked at, as good tear production is essential for the health of every eye.

Before or after these measurements, the Lasik physician will discuss your past medical history to see any previous operations or any ongoing health problems. A few chronic conditions may make the Lasik procedure not a good option for some people, and also women currently expecting should wait for some time after delivery. The physician also will discuss the expectations the Lasik client has about the operation and subsequent changes in their lifestyle.

Though most people pass through this Lasik eye exam with flying colors, be prepared for some suggestions or serious discussion. Your eye map may indicate that a newer form of Lasik procedure might be better, such as one that generates a three dimensional waveform for each eye. Tear production issues may indicate that the Lasik procedure is not the best option for you, and the Lasik physician may recommend another solution.

If all goes well and the Lasik procedure is scheduled, the physician will review the treatment plan and what the client should do to prepare for the Lasik surgery. This plan may vary slightly between patients, but in general will look something like the schedule below. Always follow the recommendations of your Lasik physician closely.
First, contact lenses should be avoided for several weeks prior to Lasik vision correction, since contacts can slightly affect the shape of your cornea. It is important to let your eyes rest in order to get the most accurate Lasik vision improvement possible. Hard contacts should be avoided for a month, soft contacts for at least two weeks.

Stop using any lotions, makeup, or anything else that could possibly get into the eye the day or two before surgery. It is important to have your eyes as rested as possible before the Lasik operation. Also, arrange for someone else to drive you home after the Lasik procedure itself.

These are the most common steps to prepare you for an easy and successful Lasik procedure. Make sure you give the doctor all information needed for your case, and follow his directions closely. The Lasik procedure will give you a new outlook in life!

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What Is A Wavefront Lasik Procedure Like

Tuesday, January 6th, 2009

What is a Wavefront Lasik Procedure Like?

Let’s walk through what a client experiences when attending a Lasik center for a Wavefront Lasik procedure. The procedure itself generally only takes between five and ten minutes for each eye in total, and both eyes are done during the same procedure. The actual time to reshape the eye with the Lasik excimer laser is usually less than 15 seconds per eye.

Any person’s vision problems are generated by small “aberrations” within the eye that prevents the light from focusing objects as they should. The Lasik equipment locates and classifies these aberrations and then processes them so that the Lasik physician will correct these and allow the light to focus properly once the eye has healed.

In a Wavefront Lasik procedure, the patient stares at one point while a light is sent into the eye, which is reflected back and read by a Lasik Wavefront sensor. The distortions in this reflected light are mapped using a small computer within the Lasik system, and then this information is used to guide the laser that treats the eye.
Once the light creates the map for the eye, the Lasik surgeon has to create a small flap to access the cornea. This is done using a laser (this type of Lasik procedure is known as IntraLasik, or bladeless Lasik) or a small blade known as a microkeratome.

This flap is then opened to allow the cornea to be reshaped by the Lasik system.The excimer laser actually reshapes the cornea, which is the crucial part of the Lasik procedure. In order to determine exactly how to reshape it, the map created earlier by the Wavefront sensor is used to direct the beam of light accurately. The Lasik physician uses these precise tools to get the clearest vision results possible.

This custom Lasik procedure can not only correct such standard problems as nearsightedness, but can also address aberrations that create light halos, glare, haze, or starburst patterns. Once the Lasik physician determines that all relevant aberrations have been eliminated, he replaces the flap in its proper position, where it adheres normally and will heal naturally.

As mentioned earlier, this entire Lasik process takes between ten and fifteen minutes per eye. A patient gets a mild sedative and eye numbing drops to make the procedure both relaxing and painless. Most people notice an improvement in vision due to Lasik almost immediately.

Once the Lasik procedure is finished, you will get some eye drop medication to lubricate and protect your eyes. This medication (and the liquid in the drops themselves) may cause some blurring, and so for this reason (and to avoid any eyestrain) you should arrange for someone else to drive you home. It is also a good idea to go to sleep as soon as possible after the Lasik operation in order to promote even faster healing.

To promote optimal healing the Lasik physician often gives a plastic shield to wear over your eyes for the first night or two. Follow closely any recommendations by the Lasik physician. Do further investigation into this great new Lasik procedure, and get a clearer focus on your future!

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Pros And Cons For Lasik With Intralase

Saturday, December 27th, 2008

Pros and Cons for Lasik with IntraLase

Those who have had a Lasik technique done, and those who are investigating having a Lasik vision correction procedure, know that the first step of that procedure is to create a small flap in order for the Lasik physician to reshape the cornea. This flap is created by the surgeon, and can be done using a small blade or using a laser. Using the laser is generally called a bladeless Lasik procedure, or IntraLasik, or IntraLase.

For those that are considering a Lasik procedure, this review should be helpful in order to determine the pros and cons of the Lasik procedure using IntraLase. One comment to be made is that the risks and complications possible using the small blade are well known and documented, since that procedure has been done for years and has a database of millions of patients.

Granted, 90% or more of all Lasik patients have no serious side effects or even minor lasting side effects, but it is true that a large part of the complications from Lasik procedures stem from the flap made with the microkeratome blade. Over the years additional techniques have been developed to further minimize such problems from the standard Lasik procedure.

The introduction of the laser to create the flap is a new frontier in the Lasik procedure. The laser is used in combination with state of the art software to create a flap of a pre-programmed size at a specific depth and position. During this process, a soft suction ring holds the eye in place, but this causes no discomfort to the Lasik client. Generally the only effect noticed by most Lasik patients is a dimming of vision in the eye being worked on for the duration of the treatment of that eye.

The use of the laser creates very small bubbles of water and carbon dioxide that serve as a good buffer between the flap and the cornea itself, and so this Lasik procedure conserves the eye very carefully. The whole process of creating a flap for one eye takes approximately one minute.

The advantages of using a laser to make the flap for the Lasik vision correction procedure is that there is no way that the cornea can be abraded, nor any chance of the wrong size or depth of flap, since it is all pre-programmed with Lasik software. The exact vertical edges of the flap produced using this Lasik procedure help healing, and also decrease the possibility that the flap might slip or wrinkle if the eye is accidentally bumped or rubbed during the healing process.

There are very few cons to using a laser to create the flap during a Lasik procedure. One is that the process takes a bit longer, up to a minute. A second reason is that the low level suction during this phase of the Lasik operation does result in eye redness for about 5% of the patients, but this goes away within a few days. The last reason is that there is still a difference in cost between this and the traditional Lasik procedure, but hopefully that will decrease as the years progress.

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My Intralasik Experience

Tuesday, December 23rd, 2008

My Intralasik Experience

I wanted to investigate Lasik vision correction for myself, and found that there were several options. After talking it over with a great Lasik physician, I decided on using bladeless Lasik, or Intralasik, or Intralase. I cannot say that I decided that for any great technical reasons, mine were mainly psychological.

The advantage of Intralasik over a traditional Lasik procedure is that a laser is used to make a flap in the eye. Every Lasik procedure needs to make a flap in order for the excimer laser to be able to reshape the corner. In traditional Lasik, the flap is made with a microkeratome, which is “a very small blade, not a scalpel”. Well, maybe to you. Somehow, even though both the laser and the blade made the same flap, the idea of someone taking a sharp object to….. well, you get the picture.

In addition (though there is a lot of argument and debate over this) using a laser to make the flap might (let me emphasize might to be fair to everyone) make the Lasik procedure have less chance of getting other cells underneath the flap. I don’t really understand all of the Lasik arguments with regard to this, but I think you should discuss the various Lasik options with the physician. They do vary in cost also.

Before I talk about the procedure itself, let me give a bird’s eye view of myself as a Lasik candidate. In short, spectacular! Seriously, all of the items for a good Lasik candidate could describe me: a healthy guy in my mid-thirties, with moderate nearsightedness and slight astigmatism, with good results on all eye exam tests (thick cornea, no eye scarring or infections, etc.).

I did visit two different Lasik surgeons to get their independent opinions of me as a candidate, and also their description of their services. One of the Lasik surgeons is on the staff at the medical college in a nearby major metropolitan center, so I was pretty assured that their opinions were valid.

On the day of the Lasik surgery I came in, paid my first payment for the procedure, and had my eye prescription rechecked. I was given post-procedure instructions on eye drops, no exercising (yeah!), and to go to sleep after the Lasik procedure. I was given a relaxant, and the Lasik physician and I went to the surgery suite.

The chair has padded pillows to rest and restrict head movement, and a teddy bear to hold if I wanted it. There was a clamp to hold my eyes open, and a suction ring, and then my vision in that eye went a bit dim. The first Lasik laser made the flap, and I focused on a small light while the other laser made the cornea changes. This took less than thirty seconds, or so I was told.

Mainly I was aware of clicking noises and some pressure, but no pain or real discomfort. After the eye flaps were put back in place, I rested in a recliner for about 20 minutes. I could see more clearly immediately after the Lasik operation was over, but was told not to try and test my eyes for a number of days, and rather concentrate on getting them healthy and healed.

I am surprised and immensely pleased it went so easily, well, and pain free. I would recommend this type of Lasik procedure to anyone.

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Meet A Lasik Pioneer

Friday, December 19th, 2008

Meet a Lasik Pioneer!

One of the first publicized physicians that perform the Lasik eye corrective operation was Dr. Boothe, of Dallas Texas. He has performed the Lasik operation for a number of different clients, including members of the NFL Dallas Cowboys football team. There are countless testimonials of how satisfied his Lasik clients were with the surgery, even a number of years later.

One of the important considerations for any doctor is kindness, and Dr Boothe’s Lasik patients comment on this trait after their procedures. They all agree that Dr. Boothe made them feel very relaxed about the procedure, and took time to answer any and all questions that they might have. This is especially important with the Lasik process, as eye health is crucially important, and confidence in the doctor makes considering the Lasik option much more feasible.

Dr. Boothe became a specialist of the eye, and especially the cornea, in 1987.

He has performed more than 80,000 Lasik laser vision corrections in that time. He has also contributed to the field of expanding Lasik practice, with the new VISX three dimensional wavefront procedures. These procedures are especially useful for those people with unusual configurations of their eyes.

One of the other newer Lasik procedures uses only the laser, instead of the usual Lasik operation using both scalpel and laser. He is the leader in the performance of this field, and has done more than 45,000 of these operations. This type of Lasik procedure holds new promise for the field, and should be investigated by anyone considering any type of Lasik procedure.

Looking at some of Dr. Boothe’s background will help prospective Lasik clients to look for a physician of similar quality in their area. Dr. Boothe’s center itself is located in the Dallas metropolitan area, but there are many fine doctors that practice Lasik procedures in all parts of the country. He has taught a number of other surgeons in the technique, and so one question that should be asked is where the physician received his training in the Lasik procedure, and which doctors taught the technique.

A most critical part of traditional Lasik surgery is using the microkeratome to make and lift a flap in the eye. Dr. Boothe’s love of medicine and absorption in furthering the techniques used in Lasik make him a pioneer in the field of ophthalmology. He is board certified by the American Board of Ophthalmology, and emphasizes that any patient should check the board certification for any physician they are considering for performing the Lasik procedure in addition to standard medical certifications, such as the American Medical Association.

One reason that Dr. Boothe entered the field of Lasik surgery was because a good eye surgeon can dramatically improve the quality of life for his patients, as is attested by his many thousands of satisfied patients. The doctor that a patient selects for the Lasik procedure should have high standards for safety, accuracy, and precision. This should be reflected in the results and opinions of the patients that the doctor has. Lasik can be a life improving procedure, and careful selection of a physician in the same mold as Dr. Boothe can make it much more certain.

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Eliminate Your Fears Of Lasik

Friday, December 12th, 2008

Eliminate Your Fears of Lasik!

Thinking about eye surgery using a Lasik procedure is a big step, and many people are a little hesitant to ask the questions that they have. The Lasik procedure, though widely talked about, is not discussed in detail, and people tend to fear the unknown. This report addresses some of the more commonly held fears, and talks about the experience for the vast majority of people that undergo a Lasik procedure.

A most common fear when thinking about a Lasik procedure, or really thinking about any surgery in general, is the possibility of pain during or after the operation. Since the Lasik surgeon works on patients that are conscious, this is a widely held apprehension. In every operation the Lasik surgeon applies numbing drops into the eyes before the procedure starts, and the patient is also given a mild sedative to relax them and make sure that they are comfortable. Though a small pressure to the eye may be felt during the Lasik procedure, the process itself is relatively pain free.

The surgeon does use a laser in the eye to help reshape the cornea during the Lasik procedure. Many folks are worried about the laser being shone directly into the eye, or that they might look away and, due to this, develop a serious complication with their eyes and the Lasik laser beam effects. In actuality, the laser is only active for ten to fifteen seconds for each eye, and the Lasik machine has a tracking system that allows the beam to be on only when the eye is in the correct position.

Another general fear for people contemplating a medical procedure is fear of “the scalpel”. Any Lasik procedure uses only a very small microkeratome blade to approach the eye, or some more recent Lasik innovations have the laser itself created the flap and avoid using any hard surface at all. There is no reason to be concerned about a scalpel, for the Lasik physician does not use one.

Many wonder about the horror stories they hear about this or any other operation, and wonder about serious consequences like going blind. According the government statistics taken by the FDA, there are no reported cases of blindness due to a Lasik operation. Actually, the risk of a serious permanent complication due to the Lasik procedure is less than 1 percent, and the risk of any permanent complications even if not serious (such as light halos) is 3 percent or less. It is extremely rare for a patient to not have improved vision after a Lasik procedure.

If the thought of being awake and having your eyes open during the Lasik procedure bothers you, remember that you will be given a mild sedative for the procedure, and that your eyes will have numbing drops administered to them. If the thought of actually seeing the Lasik physician’s hand approaching your eye is bothersome, be comforted that the surgeon applies drops to the eye that blacks out the vision in that eye for ten to fifteen seconds, which is long enough for the procedure to be done for that eye.

This introduction has hopefully addressed the most common fears about the Lasik procedure. For anyone that might gain a better life quality with improved vision, please visit your local Lasik clinic and discuss the procedure in detail with the professionals there.

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Am I A Good Candidate For Lasik

Tuesday, December 9th, 2008

Am I a Good Candidate for Lasik?

So many people are interested in the Lasik vision correction procedure, and want to know the benefits, the risks, and how the Lasik procedure works. One of the first things to consider is what requirements a person should meet in order to have a successful Lasik procedure. Though each individual case should be discussed with a qualified Lasik physician, here are some guidelines to see if you are a good candidate for Lasik vision correction.

First, the eye should be properly matured. This means that anyone under the age of 18 really needs to wait before a Lasik procedure is done, for it is likely that the shape of their eye will continue to change for several years. If the eye shape changes after the Lasik operation is done, the clarity of vision will be affected. Some Lasik physicians recommend waiting until age 25 in some cases.

In addition to an age cutoff, the vision prescription for the Lasik candidate should be stable for at least one year, and preferably for longer than that. This is for the same reason as above, that the Lasik procedure will only continue to be effective if the eye shape remains constant after surgery.

One comment about age cutoffs should be made with regard to Lasik surgery. There is no maximum age, as many patients in their fifties to their eighties have had a very successful Lasik procedure. The main consideration in these cases is enough tear production for successful healing and lubrication after the Lasik vision correction.

The eyes of the Lasik candidate should be healthy. This means that any person undergoing a Lasik procedure should have had no eye infection or injury for at least a year, and must have no scarring on the cornea of the eye. In addition, they must not have any recurring eye problem, such as a history of herpes infection in the eyes.

The medical history of a prospective Lasik client also plays an important part. Some chronic conditions, such as autoimmune disorders like Lupus, will prevent some people from being able to schedule a Lasik procedure. You should be very clear about any and all medical conditions that are current, or even completed ones in the past. Also, women who are pregnant or nursing should wait to have a Lasik procedure scheduled.

A good Lasik physician will also not schedule people with dry eye syndrome for Lasik vision correction. Having sufficient tear production is important, though for minor problems this may be aided by medication during the healing process. In addition, those people with eyes that dilate very widely are not good candidates for Lasik.

These are most of the most common reasons that a person should look at some other eye improvement choice other than Lasik. Most generally healthy people with standard vision problems benefit greatly from a Lasik procedure done by a trained, professional Lasik physician. Look for a good Lasik center in your area and discuss your individual case in detail.

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