High Definition Lasik™

Ben Winters
Director - Aroma NZ
"Having 20/20 vision after
20 years isn't a bad result..."

With High Definition LASIK™ at Fendalton Eye Clinic, Dr Kent uses the safety, precision & accuracy of a Zeiss VisuMax® femtosecond laser to create a flap in the cornea. With a laser creating the flap, Dr Kent achieves the exact thickness of flap that is required.

We are committed to the safety and precision of your laser eye surgery treatment. NASA will only allow their fighter pilots and astronauts to have a LASIK procedure that is carried out with a femtosecond laser creating the corneal flap. Microkeratome bladed LASIK is not approved by NASA due to increased risk of complications with the oscillating blade of a microkeratome and reduced quality of vision in low light situations. Fendalton Eye Clinic offers "All laser" LASIK which is often termed iLASIK we term it HD LASIK®

There are two steps to the HD LASIK® procedure.

Step One:

step1

First a flap is created in the cornea (front clear window of the eye). At Fendalton Eye Clinic Dr Kent uses the Zeiss VisuMax® (a femtosecond laser) to create a precision LASIK flap.

Some clinics still use a bladed instrument (microkeratome) to cut the corneal flap, a less precise means of making the corneal flap. While LASIK is extremely safe if complications occur the microkeratome (blade) is most often the cause. At Fendalton Eye Clinic we have eliminated this potential source of complications.

Dr Kent, using the precision of a laser to "create" rather than "cut" the corneal flap provides added safety for patients with a more predictable outcome.

With a femtosecond laser we can create the corneal flap using the safety and accuracy of a computer guided laser - without a blade ever touching your eye.

 Step Two:

step2

The precise flap created by the Zeiss VisuMax® laser is lifted and the excimer laser is used to reshape the inner layers of the cornea with your personalised treatment profile, incorporating eye recognition technology and seven dimensional eye tracking to achieve precise delivery of treatment. 

 


How does the Zeiss VisuMax® (femtosecond) laser make the LASIK flap?

The Zeiss VisuMax® laser allows Dr Kent to tailor-make a precise corneal flap based on what is best for your eyes.

Dr Kent programmes the Zeiss VisuMax® laser to deliver tiny rapid pulses of laser, forming microscopic bubbles focused at a precise depth inside the cornea. This process is know as photodisruption.



The Zeiss VisuMax® femtosecond laser creates rows of these bubbles just beneath the corneal surface as it moves back and forth across your eye in a uniform plane - creating a cleavage plane.

  • The edge of the flap is created by stacking laser pulses at an angle that is determined by your doctor and is individualized to the way your eye is shaped. The Zeiss VisuMax® laser flap is created in around 20 seconds.
  • The flap is then lifted and the excimer laser reshapes the inner layers of the cornea. The surgeon then repositions the flap back into place where it “locks” into position.


Benefits of creating the LASIK flap with a femtosecond laser. The safety and accuracy of 100% bladefree, all laser LASIK procedure – a blade never touches your eye.

  • The chance of a perfect flap with the Zeiss VisuMax® femtosecond laser is nearly 100%. In comparision between 1 in 100 and 1 and 500 procedures with microkeratome(bladed) LASIK have a problem with creation of the flap.
  • Proven technology that has been available in the USA since 2001.
  • To date over one million people have had their LASIK flap created using a femtosecond laser.
  • Virtually all the leading excimer laser centres worldwide now offer femtosecond LASIK. Only lower cost provider clinics offer microkeratome LASIK, as a microkeratome is 1/7th the cost of a femtosecond laser.
  • Femtosecond LASIK is the only LASIK surgery approved for use in USA AirForce pilots. Studies with microkeratome LASIK showed too much loss of quality of vision. In comparison, femtosecond LASIK has been shown to maintain quality of vision.