This term is an acronym for Laser In-Situ Keratomileusis, meaning reshaping of the cornea using a laser. Dr. Anita Nevyas-Wallace and Dr. Herbert Nevyas have been performing the Keratomileusis procedure since 1992, and Dr. Vipin Goyal has been performing the procedure since 2000 Using an instrument called a microkeratome, our surgeons create a thin flap in the outer layer of the cornea. This flap will then help to protect the treated cornea underneath. The flap, or thin protective cap, is then folded back to expose the corneal stroma, which the laser will reshape to reduce refractive error. When the excimer laser was FDA approved, it added an incredibly precise method of removing underlying tissue. The excimer laser produces a “cool” or non-thermal light beam, removing the necessary tissue without damaging the surrounding cornea. For nearsighted patients, corneal tissue is removed primarily in the center of the cornea, flattening the cornea and thereby decreasing their nearsightedness. For farsighted patients tissue is removed mainly in the periphery to steepen the cornea, thereby decreasing farsightedness. To treat astigmatism, the laser reshapes the cornea to make it more spherical. After the laser treatment, the protective flap is then placed back in its original position.

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The LADARVision Excimer laser

We offer the highest level of technology for your LASIK procedure. We perform surgery using the Alcon LADARVision excimer laser. This laser offers the newest “flying spot” technology for correction of nearsightedness, farsightedness and astigmatism. The other feature that sets this laser apart from all others is its eye tracking system. Our eyes are always making small, involuntary movements that are beyond our control. Eye movements during the LASIK procedure on a “regular” excimer laser can compromise the precise placement of each laser pulse. The laser radar eye tracking system on the LADARVision system accurately tracks all eye movements during surgery. This means that as the patient, you do not have to worry about holding your eye still. The tracker will adjust and realign the laser 4,000 times per second, resulting in perfect placement of each individual laser pulse. The FDA states that, to cover all involuntary eye movements, the tracker must adjust 1,000 times per second – the LADARVision system tracks 4 times that amount! Other lasers with tracking devices use video-based systems that can only track the eye between 60 and 250 times per second. Only LADARVision can properly track all involuntary movements of the eye during surgery.

Another benefit to the LADARVision system is its ability to reduce the risk of nighttime glare and halos, thanks to its adjustable treatment zone. Because treatments can be performed that are wide enough in diameter to accommodate larger pupil sizes, more patients are able to have the LASIK procedure than ever before. At Nevyas Eye Associates we also have the LADARWave system for wavefront correction. Using a special aberrometer, we can program the LADARVision laser to correct higher order aberrations, or distortions and thereby personalize your correction to obtain a level of vision beyond correction of just nearsightedness, farsightedness and astigmatism.

For more information on the LADARVision system, you can visit the Alcon website by clicking here.

The LASIK Procedure, from start to finish

• The no-charge preoperative evaluation: After scheduling your visit with us by calling 800-9LASER6, please remove your soft contact lenses for 1 week or hard or gas permeable lenses for 5 weeks. You should allot at least two hours for your visit, for we will be going through a thorough exam to determine your candidacy. You will be checked for eye health, refraction, corneal thickness, corneal topography (mapping of the shape and the curvature of the cornea), pupil measurements, retinal health, visual acuity, dominant eye, monovision candidacy and other tests. Your surgeon will perform a thorough examination of your eyes and will then discuss with you your refractive surgical alternatives.
• Scheduling: We do all of our laser vision correction procedures in our new LADARVision suite in our Bala Cynwyd office. A date will be chosen for your surgery and financing options will be discussed. At the time of scheduling, you will be given your LASIK packet. This contains your informed consent and pre-operative instructions. A refractive coordinator will review your packet with you before you leave the office. You will be given preoperative medications in the form of artificial tears and antibiotic eye drops. We have a courtesy van transportation service available, if needed, on the day of surgery.
• Surgery Day: Upon your arrival, a refractive coordinator will collect your informed consent and review any final questions. For our LADARVision laser, we take a “picture” of the eye before dilation. This picture is saved in the computer and allows the laser to “remember” each patient’s exact measurements. Once we have taken the perfect picture, a nurse will instill the dilating drops into the eye and do a final eyelid wash to prepare you for your procedure. You will be given a gentle sedative and eye drop anesthesia. On average, you will be in the laser suite for about 20 minutes per eye. The actual operating time is just a few minutes.  There is no pain.  You will leave the office with clear plastic eye shields placed over the operated eye(s) and you will be given medication to take when you get home. That evening, you will be expected to rest comfortably with your shields in place, and to return to our office the following morning.
• After surgery care: You will be scheduled to return to our office the next day and return to either our office or a co-managing doctor’s office intermittently over the next year. Usually, the visits are scheduled at 1 day, 3-5 days, 1 month, 3 months, 6 months and 1 year. For a few days postoperatively, you will be taking antibiotic and anti-inflammatory eye drops a few times a day. You will also be using lubricating drops as needed, and wearing the protective eye shields to bed each night for the first week. Complete post-operative instructions will be given to each patient after surgery.

Nevyas Eye Associates - LASIK Results

Our refractive surgeons at Nevyas Eye Associates, Drs. Anita Nevyas-Wallace, Herbert Nevyas, and Vipin Goyal pride themselves on their dedication to excellence in all surgeries that they perform. Since we began doing the LASIK technique, we have done everything  possible to give you the best possible result. We use the very best technique on the most technologically advanced laser, the LADARVision laser, in a sterile environment. It is that dedication to excellence that has given us the many happy patients that we have today.

The excimer laser was first approved for use on the cornea in 1995; we began performing LASIK at that time. Many surgeons began laser treatments with PRK – a treatment using the laser to reshape on the surface of the cornea. However, because the surgeons at Nevyas Eye Associates were already experienced in performing procedures that involved creating corneal flaps (without using an excimer laser) they were able to begin performing LASIK immediately. Their vast experience with corneal flap making helped them to transition into performing the LASIK surgery, which was the procedure of choice for most patients.

Contact us to learn more about LASIK

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