We chose the IntraLase™ FS Laser because it allows unprecedented control and accuracy in customizing thinner and cleaner corneal flaps.
The IntraLase™ Femtosecond Laser (IntraLase™ FS Laser) is a leading-edge tool that relies solely on laser energy instead of the microkeratome, the metal-blade cutting instrument traditionally used in LASIK procedures. In LASIK, the surgeon cuts a hinged flap in the cornea using the microkeratome then removes excess tissue underneath with an excimer laser. Once the flap is back in place, the reshaped cornea enables better vision.
The all-laser or bladeless LASIK procedure, IntraLASIK, is also a two-step process. The first step in the IntraLASIK procedure is to make the corneal flap using the IntraLase™ FS Laser. The surgeon focuses the laser beam into a tiny spot of energy that passes harmlessly through the outer layers of the cornea until reaching its exact focal point within the central layer of the cornea. There the surgeon initiates the corneal flap, silently, painlessly and with remarkable precision. In the second step of the IntraLASIK procedure, as in the traditional LASIK method, the surgeon uses an excimer laser on the inner cornea to correct the vision. By replacing the microkeratome with a less-invasive beam of laser light, all-laser or bladeless LASIK can reduce complication risks associated with corneal flaps.
The surgeon can also use the IntraLase™ FS Laser to create the channels and entry cuts for placement of Intacs. Using the IntraLase™ FS Laser for this procedure assures that the two segments are placed at the exact same depth and removes the need for making the more-surgically difficult mechanical channel.
In 2007, Advanced Medical Optics (AMO) acquired the IntraLase technology and integrated it into their excimer laser platform (iLASIK).
Wavefront™ LASIK enables us to make extremely precise, individualized vision-corrections that would be impossible with traditional LASIK surgery, contact lenses or eyeglasses.
What is Wavefront Aberrations ?
The corneal surface should be a part of sphere, and the surface should be smooth. Wavefront aberrations simply indicates that your corneal surface is not smooth. In other words the light beam falling on the cornea will be scattered on the retina giving you a blurry image. Example on this is the picture below which shows the Wavefront aberrations on corneal map and how the image of simple dot will appear to the patient with such aberration.
Wavefront™ LASIK, also known as wavefront-guided LASIK or custom LASIK, creates three-dimensional maps of imperfections in the optical system used to guide the laser in reshaping the cornea.
Wavefront™ technology was originally pioneered in the field of astronomy and physics for reducing imperfections in the telescopes lenses. In Wavefront™ technology, a computerized wavefront-measuring instrument passes flat waves of light through the eye. As they travel, the imperfections in the eye distort the flat light waves. The wavefront device then creates a map that represents the distortions of the eye.
Wavefront™ technology has the potential to improve how much and how well you can see as well as reduce the risks of post-LASIK complications. Wavefront™ technology, unlike traditional LASIK, treats both lower-order aberrations, distortions such as myopia, hyperopia and astigmatism, and higher-order aberrations, imperfections that can cause night vision, glare, shadows and halos. Higher-order aberrations do not always affect vision. However, even if 20/20 vision is achieved, visual quality may be lessened unless these added distortions are addressed.
Monovision is a technique of custom lasik in which we can get rid of glasses for far and near, particularly for those who are over 40s where presbyopia is an issue. there, we can correct one eye with -1.0 degree for short-sightedness and correct the other eye completely.
The Patient will be able to retain good vision for far at the same time will have no problems for near.