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Catarct Lasik

Lasik is the most commonly performed refractive surgery procedure. A wide range of myopia can be corrected...

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Lasik
LASIK is the most commonly performed refractive surgery procedure. A wide range of Myopia, Hyperobia, and Astigmatism can be corrected by the LASIK procedure. It is a delicate surgical procedure that allows for a very predictable healing response. Why is it so popular? LASIK has advantages over other procedures, including a relative lack of pain afterward and the fact that good vision is usually achieved almost immediately, or at least by the very next day.
 
How it works:
Step 1: An instrument called a Microkeratome is used in LASIK eye surgery to create a thin, circular flap in the cornea. The surgeon folds the flap back out of the way.
Step 2: Some corneal tissue is then removed from underneath the corneal flap using an Excimer laser. The laser uses a cool ultraviolet light beam to precisely remove ("ablate") very tiny bits of tissue from the cornea to reshape it. When the cornea is reshaped in the right way, it works better to focus light into the eye and onto the retina, providing clearer vision than before.
Step 3: The flap is then laid back in place, covering the area where the corneal tissue was removed. This corneal reshaping only takes few minutes and is almost painless.
Both nearsighted and farsighted people can benefit from the LASIK procedure. With nearsighted people, the goal is to flatten the too-steep cornea; with farsighted people, a steeper cornea is desired. Also, Excimer lasers can correct Astigmatism, by smoothing an irregular cornea into a more normal shape.
 
Am I Suitable:
Your eyes are even more individual than your fingerprints. So we can’t establish whether Lasik is right for you without a thorough eye assessment. But you can be eligible if you are:
- With nearsightedness, farsightedness or Astigmatism.
- Over 19 years of age.
- With stable vision in both eyes for at least one year prior to the procedure.
- Free of eye diseases.
- Free from corneal conditions such as Keratoconus.
- With enough corneal thickness Not pregnant.
 
Over a quarter of the people seen at consultation are advised that laser eye treatment is not their best option. To determine the right solution for you, our specialist clinical team will carry out a number of measurements and eye tests, most of which will be familiar to you. If you turn out to be ineligible for Lasik, don’t worry, we have all possible alternatives for your case.
 
Before the Procedure:
Contact lenses must be removed from the operative eye prior to the day of your procedure as follows:
- Hard lenses : one month
- Gas permeable rigid lenses: two to four weeks
- Soft lenses: one to two weeks
- You will need to arrange for transportation and someone to accompany you on the day of your procedure.
 
The day of the procedure:
- There are no restrictions on eating, drinking or taking medications before the procedure.
- Wear comfortable clothing.
- All traces of make up should be removed.
 
During the procedure:
- The Lasik machine is calibrated with your prescription before you enter the Lasik room.
- It will take very few minutes to position you under the laser microscope.
- The procedure is done under local anesthetic eye drops.
- A simple device known as an eyelid speculum will prevent you from blinking. It is painless.
- You will be instructed to look at a flashing red target light. Your surgeon will monitor your eye through the microscope at all times.
- During the first part, you will feel a slight sensation of pressure and your vision will go quite dark as your surgeon creates the protective corneal flap. In the second part, you will hear a "clicking" sound as the laser alters the refractive curvature of your eye. The actual laser time is usually less than 60 seconds.
- You will not experience any discomfort during your LASIK procedure.
 
After the procedure:
- Immediately after the laser treatment, a soft bandage contact lens is placed on your eye. Your surgeon will remove the contact lens for you at the appropriate time, usually before you leave the hospital or the center.
- You will be given a post-operative kit containing drops and medication to use for the next few days.
- Your escort will take you home for rest.
 
Recovery Guidelines After Lasik Surgery
- Arrange for a friend or family member to drive you home after your vision correction procedure, and go directly home afterwards.
- Wear glasses and keep your eyes closed during Lasik recovery.
- Take a 2-4 hour nap (or keep eyes closed) with the clear plastic shields over your eyes.
- When you wake up remove the glasses/goggles and begin using antibiotic, steroid drops and preservative-free artificial tears as directed by your Lasik surgeon.
- Be very careful not to poke, rub, squeeze or touch your eyes - all could cause discomfort and could dislodge the flaps.
- Use the preservative-free artificial tears for irritation and/or dryness
- Avoid staring. Blink frequently.
- Avoid soap and water in the eyes.
- Take It Easy! Restrict activities to minimal, restful things and keep eyes well lubricated with artificial tears. We advise no reading, no computer work, and no watching TV. We recommend resting for the first 24 hours following surgery.
- Your vision may be hazy or blurry. This is typical as your eyes continue to heal during Lasik recovery.
- Your eyes may burn, tear, itch, be slightly red/swollen or feel like there is something (like an eyelash) in them.
- You may experience sensitivity to light, glare, starbursts or halos around lights.
- Any of these symptoms should improve considerably within the first few days following treatment.
- You may want to wear your glasses/goggles while sleeping and at bedtime, so you don't accidentally bump or rub your eyes.
 
Few Do’s & Don’ts:
- Avoid swimming, hot tubs, and gardening for one week.
- Do not wear make-up for the first four to five days following your LASIK procedure.
- It is important not to rub your eye at all, just dab gently underneath the eye.
- Showers and baths are fine, but avoid getting water into your eye.
- You may go back to work and return to your usual exercise routine the day after your treatment.
- At your first post operative visit, your eye doctor will tell you when you may resume driving. Most patients are able to see well enough to drive 24 hours after their procedure.
 
Results:
Lasik has helped millions around the world to reduce their dependence on glasses and contact lenses. Lasik success rates are around 98% of all our patients as they achieve driving standard of vision, or better, without their glasses or contact lenses.
The Intralase FS laser introduces the new femtosecond laser technology to ophthalmology. Surgeons at Magrabi Hospitals & Centers are the only in the Middle East who have now the opportunity to offer their patients this privilege. The Intralase may make LASIK even safer and more accurate. It is used in a LASIK variation called IntraLASIK to create the corneal flap under which they reshape your eye to correct your vision. In traditional LASIK, surgeons use a blade called a Microkeratome to create the flap.
 
Although surgical complications during LASIK are relatively rare, when they do occur, the Microkeratome portion of the procedure is often the source of the problem. The laser's technology is distinguished by the speed of the laser pulse — in the femtosecond (one-quadrillionth of a second) range. It is used only to create the flap for IntraLASIK, and then surgeons use an Excimer laser to perform the rest of the LASIK procedure.
 
How IntraLASIK Works:
The surgeon uses IntraLASIK computer software to guide the Intralase laser beam, which passes into the cornea and pulses a pattern of tiny overlapping spots. This pattern results in a precise cut of the cornea at a depth determined by the surgeon. As with a mechanical Microkeratome, a small section of tissue at one edge of the corneal flap is left uncut, forming a hinge that allows the surgeon to fold back the corneal flap and reshape the corneal bed with the Excimer laser as in traditional LASIK.
 
Benefits of Intralase could be summarized as follows:
- More accurate results.
- Wider spectrum of Refractive error degrees (higher degrees of Myopia, Hyperopia).
- People ineligible for Lasik can be eligible for IntraLASIK
- Quicker and tighter healing of the cornea.
- Quicker return to normal life (work, swimming, driving, …)
- Less complications (irritation, dry eye, …) Completely painless.
LASEK (laser epithelial Keratomileusis) is a relatively new procedure that is technically a variation of PRK. It is also called epithelial LASIK or E-LASIK.  LASEK is used mostly for people with corneas that are too thin or too flat for LASIK. It was developed to reduce the chance of complications that occur when the flap created during LASIK is not the ideal thickness or diameter
 
The LASEK Procedure:
In LASEK, the epithelium, or outer layer of the cornea, is cut not with the Microkeratome cutting tool used in LASIK, but with a finer blade called a trephine. Then the surgeon covers the eye with an alcohol solution (perhaps one part alcohol and four parts sterile water) for around 30 seconds. The solution loosens the edges of the epithelium.
After sponging the alcohol solution from the eye, the surgeon uses a tiny hoe to lift the edge of the epithelial flap and gently folds it back out of the way. Then he uses an Excimer laser, as in LASIK, to sculpt the corneal tissue underneath. Afterward, the epithelial flap is placed back on the eye with a kind of spatula.
 
After LASEK:
In many ways, what you can expect from LASEK is similar to what you can expect from LASIK, but there are some differences. According to doctors who perform LASEK, the flap edge heals in about a day, though patients usually wear a bandage contact lens for around four days. You may feel eye irritation during the first day or two afterward. Also, the time it takes to recover good vision is often longer — up to four to seven days. Of course, it varies from one person to the next.
If you are considering LASIK, but your doctor says you need LASEK instead, ask why. It's not for everyone, but many surgeons who perform LASEK consider it a better option for some patients who will probably not do very well with LASIK.
 
Epilasik is One of the newest procedures in vision correction is Epithelial Keratomileusis (Epilasik). Epilasik is similar to LASIK, but the flap is created by using a different method in which only the top layer of the cornea (epithelium) is temporarily removed.
 
Approximately thirty-five percent less tissue is removed using Epilasik. Now, the patients who have thin corneas can be good candidates for laser vision correction. And, since no Microkeratome is needed, all complications associated with stromal flaps are eliminated. Epilasik appears to be a superior option for patients with dry eyes.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Phakic IOL Implantable contact lenses, known as phakic intraocular lenses (IOLs) to ophthalmologists, are presently being investigated as another refractive procedure. Phakic IOLs hold promise as potentially a powerful refractive tool with almost unlimited potential to correct refractive errors (nearsightedness and farsightedness). At the present time, Phakic IOLs are expected to gain wide acceptance from ophthalmologists who have implanted IOLs in cataract patients for the past four decades with excellent results.
 
The phakic IOL is unique, however, in that the thin intraocular lens implant is placed in the eye without removing the natural lens of the eye, as is completed in cataract surgery. At present, phakic IOLs, which are implanted both in front of and just behind the iris of the eye, are being studied. Given that the natural lens of the eye is not removed, the patient retains the natural focusing capability (accommodation) of the eye for near focusing tasks.
 
The phakic IOL must be shown to be as accurate in correcting high power refractive errors as other refractive procedures (e.g., LASIK, PRK, and Intacs) and has a comparable safety profile. Ophthalmologists believe that the phakic IOL may prove to be a powerful addition to the present refractive armamentarium, especially for those individuals whose refractive errors presently fall out of the range for LASIK.
 
 
 
 
 
 
 
 
Intacs is a recent and revolutionary corneal ring prescription insert that is entirely reversible. Thus, patients who elect to have Intacs are not “locked in” to the procedure forever, as are patients who undergo other refractive procedures such as LASIK and PRK.
 
Vision correction with Intacs entails implanting the micro-thin intracorneal rings into the cornea by a trained eye surgeon. Intacs produce a reshaping of the curvature of the cornea, reliably reducing low degrees of Myopia (nearsightedness). Intacs cannot be felt by the patient, require no maintenance, and are probably less visible than a contact lens to the naked eye. Intacs have been studied for 10 years and are FDA approved. The primary drawback at the present time is that Intacs are only available in the U.S. for low degrees of Myopia (-1.00 to –3.00 diopters). However, these levels of Myopia account for about 54% of all myopes.
 
Intacs are also prescription inserts, and they can be removed or replaced if one’s vision needs change or there is any dissatisfaction with the corneal ring inserts. In the U.S. clinical trials, all of the very few people who had Intacs removed could subsequently be corrected to 20/20 or better vision.
 
Intacs produce excellent results. In U.S. clinical studies, 97% of patients saw 20/40 or better, 74% saw 20/20 or better, and 53% saw 20/16 or better. Furthermore, placement of Intacs maintains the “normal” positive asphericity (shape) of the cornea whereas Excimer laser procedures such as LASIK and PRK frequently produce oblate corneas. The latter condition may result in reduced contrast sensitivity. Visual correction with Intacs is also rapid and stable. Eighty percent of patients have 20/40 or better vision the day after surgery. A year after surgery, over 50% of patients see 20/16 or better as a result of their first procedure, i.e., without enhancements.
 
Indications for Intacs:
- -1.00 to ¬3.00 diopters of nearsightedness (Myopia)
- (Note: this range of Myopia is considered "mild" by EyeMDs, yet accounts for 54% of all myopes)
- Relative intolerance of glasses or contact lenses
- Properly motivated and realistic patient
 
Visual Results:
Amazingly, 53% of patients see 20/16 or better as a result of their primary procedure and 34% see 20/20 or better the day after the procedure! One month after surgery 79% of patients see 20/25 or better and by one year 87% of patients see 20/25 or better. Fully 97% of patients are 20/40 or better one year following surgery (20/40 is a "benchmark" of visual acuity as this level of vision allows unrestricted passage of a driver's license test in most states).
 
The Procedure:
Intacs corneal ring prescription inserts are placed within the substance of the cornea under topically applied (eye drop) anesthesia. No needles or injections are required. Some patients may experience mild and temporary discomfort during the procedure. The surgeon makes a tiny incision in the top of the cornea, creates a 180 degree tunnel in which to place the first prescription insert, and then places the Intacs ring in the corneal tunnel. A similar procedure is used to place the second Intacs ring.
Two Intacs inserts are placed in each eye, each of which approximates a near half-circle. The tiny incision through which the Intacs are placed is usually closed with a single stitch that can be removed within a few days or weeks. The entire procedure usually takes about 15 to 20 minutes per eye.
 
What to Expect After Surgery:
The day of surgery, the operated eye may feel somewhat scratchy and vision may be blurred. Do not be alarmed. Any discomfort will usually be relieved by anti-inflammatory eye drop medications. You will be instructed to use both antibiotic and steroid eye drops, generally for about two weeks following surgery. On the first postoperative day, vision is usually good enough to drive a car, i.e., 20/40 or better, but may be reduced if the eye remains dry or an abrasion of the corneal surface has occurred.
 
You will not be able to feel your Intacs inserts, however, you may feel the tiny incision and or stitch as the incision heals. This will usually resolve within a couple of days. If a suture was placed, your surgeon will probably remove it in about 2 to 4 weeks. With Intacs prescription inserts, you may expect your vision to recover very quickly and to continue to improve for up to 6 to 12 months.
Conductive Keratoplasty (CK) is the first non-laser procedure for baby boomers who have had clear vision all their life, but now struggle to see life's details without glasses. CK is a safe, minimally invasive alternative to laser procedures. It is a suitable solution for those with hyperopia.
 
How CK works:
Conductive Keratoplasty changes how the eye focuses light by reshaping the cornea using radiofrequency (RF) energy. CK is a quick procedure with no cutting involved. You don't even have to go to an outpatient surgery center. In just three minutes, a doctor can perform CK in his or her office.
 
The procedure:
After the doctor has applied a topical anesthetic (eye drops), controlled RF energy is applied in a circular pattern to heat and shrink the corneal tissue. This pattern is along the periphery of your cornea, which spares your visual axis (i.e., pupil) and therefore helps minimize some of the side effects associated with other refractive procedures. Once finished, you don't have to wear a patch and can usually return to work or normal activities the next day. Vision generally begins improving in about a week's time. As with other vision procedures, the level of improved vision may be temporary due to the natural aging process. While Conductive Keratoplasty can turn back the clock on your vision, it cannot stop the clock entirely.
 
About farsightedness:
Young people with hyperopia (30 to 45 years) may not have any problems seeing things in the distance, but may strain their eyes unnecessarily to maintain focus on close-up objects. Middle-aged hyperopes (45 to 55 years) also may not have any problems seeing things in the distance, but may require reading glasses at an earlier age because their eyes can no longer compensate or strain to maintain near focus. Finally, hyperopes over the age of 55 often cannot see things in the distance nor close up, which is why they need bifocals.
 
Correcting farsightedness with CK:
CK (Conductive Keratoplasty) is a safe, effective alternative to laser vision correction procedures for people with mild to moderate hyperopia (+0.75 to +3.00 diopters). CK treats farsightedness by steepening the central cornea using controlled radiofrequency (RF) energy. The RF energy is applied in a circular pattern along the periphery of the cornea, which may minimize the potential for some complications associated with other vision procedures.
The Intralase FS laser introduces the new femtosecond laser technology to ophthalmology Surgeons at Magrabi Hospitals & Centers are the only in the Middle East who have now the opportunity to offer their patients this privilege. The Intralase may make LASIK even safer and more accurate. It is used in a LASIK variation called IntraLASIK to create the corneal flap under which they reshape your eye to correct your vision. In traditional LASIK, surgeons use a blade called a Microkeratome to create the flap.
 
Although surgical complications during LASIK are relatively rare, when they do occur, the Microkeratome portion of the procedure is often the source of the problem. The laser's technology is distinguished by the speed of the laser pulse — in the femtosecond (one-quadrillionth of a second) range. It is used only to create the flap for IntraLASIK, and then surgeons use an Excimer laser to perform the rest of the LASIK procedure.
 
How IntraLASIK Works:
The surgeon uses IntraLASIK computer software to guide the Intralase laser beam, which passes into the cornea and pulses a pattern of tiny overlapping spots. This pattern results in a precise cut of the cornea at a depth determined by the surgeon. As with a mechanical Microkeratome, a small section of tissue at one edge of the corneal flap is left uncut, forming a hinge that allows the surgeon to fold back the corneal flap and reshape the corneal bed with the Excimer laser as in traditional LASIK.
 
Benefits of Intralase could be summarized as follows:
- More accurate results.
- Wider spectrum of Refractive error degrees (higher degrees of Myopia, Hyperopia).
- People ineligible for Lasik can be eligible for IntraLASIK
- Quicker and tighter healing of the cornea.
- Quicker return to normal life (work, swimming, driving, …)
- Less complications (irritation, dry eye, …)
- Completely painless.
 
Intracorneal Lens (Perma Vision)
This is a procedure where lenses can be inserted under a flap in the cornea. Theselenses are called PermaVision lenses which are made of optically clear Nutrapore. The lenses will permanently reshape the outer surface of the eye to make the eye focus properly. Nutrapore material is very similar to the cornea in its ability to pass nutrients, fluids, focus, hold water, and remain clear. The similarity of Nutrapore to the cornea is what makes the PermaVision procedure possible.
 
Nutrapore can be precisely formed into crescent-shaped discs and rings to correct farsightedness or nearsightedness. Unlike LASIK, which corrects nearsightedness by removing tissue, the PermaVision lens is added to the eye. This makes the surgical procedure predictable, adjustable and removable should changes be needed later.
 
 
Scleral Spacing Procedure (SSP) where the surgeon inserts four plastic segments made out of polymethyl methacrylate (PMMA) just below the surface of the sclera, which increases the distance between the muscles that focus the lens and the lens itself. It is thought that the extra distance augments the tension of the muscle, thus allowing it to do a better job of focusing the lens.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Allegretto wave eye-Q
Speed.  Precision. Better Vision.

Featuring all advantages of the well-known allegretto wave the allegretto wave eye –Q is a further step towards optimizing the process of laser vision correction. With customized ablation in mind, all wave light products have been designed as a fully integrated concept in order to provide physician and patient the highest level of safety and reliability in refractive surgery.

The allegretto wave eye-Q is the first device ever to provide the physician with the possibility of choosing the optimal treatment for the patient from all currently known possibilities of refractive surgery.
The allegretto wave eye-Q is the ultimate laser for refractive surgery. It includes a ceramic laser head with a repetition rate of 400 HZ and a solid-state power supply, for long lifetime and energy stability. It also features a fast video-based closed loop eye tracker and a nitrogen purged beam path

The easy-to-use energy calibration and closed loop energy control integrated in the ALLEGRETTO Wave Eye-Q significantly increases the working comfort for the physician and the safety for the patient.