Perhaps you’ve already thought about a life without glasses or contact lenses and are keeping track of technological advances in laser treatment. Highly innovative and ultra-fast femtosecond laser technology has set a new milestone.

It makes the proven LASIK procedure even safer and more precise – for the first time it has become possible to perform the operation completely without mechanical cutting devices. This technology today enables the treatment of patients who were hitherto precluded from surgery because their cornea was too thin or vision defect too extreme

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Femto-LASIK is one of the up-to-date laser procedures for vision correction. Femtolaser technology means an even higher level of safety and precision: the ZEISS VisuMax is so accurate that you could write your name on a hair with it. In conjunction with the computer controlled ZEISS MEL 90 laser the cornea is reshaped so exactly that glasses become unnecessary.



FemtoLASIK, is one of the latest laser procedures for correcting near- and far-sightedness and astigmatism.

In contrast to conventional LASIK, in FemtoLASIK the incision in the cornea is not made with a mechanical cutter, but with the femtosecond laser. This new, even more precise method permits the treatment of patients who were hitherto precluded from LASIK surgery because their cornea was too thin or they had a pronounced vision defect.

What is a femtosecond laser?

The femtosecond laser works with ultra-short infra-red pulses. Each laser pulse lasts only a few femto seconds, one quadrillionth of a second. A femtosecond is 0.000,000,000,000,001 second.

How a femtosecond laser works?

The femtosecond laser focuses its energy to a precise, pre-determined depth in the cornea. Each ultra-short laser pulse produces a microscopic gas bubble which separates the surrounding corneal tissue. This physical procedure is referred to as photodisruption. Thousands of closely computer guided laser pulses join together and create a highly precise incision in the corneal tissue.

What Precise Vision LASIK with
Carl Zeiss technology can mean to you?

The Carl Zeiss VisuMax femtosecond laser sets new standards of precision. Minimal laser pulse energy, thanks to high-precision ZEISS optics, and a high pulse frequency enable a hitherto unsurpassed level of incision accuracy – in exactly the desired corneal depth.


*Femto-LASIK - Ultra-short laser pulses replace a mechanically created incision.




Carl Zeiss has been actively shaping the progress of refractive laser surgery for over 20 years. The VisuMax femtosecond laser makes LASIK surgery even safer, more accurate and gentle. In the following you will see all the advantages of the precision laser at a glance.

Possible incision-related complications due to a microkeratome malfunction are ruled out.

Highly-developed ZEISS optics ensures minimal energy into the eye. Surrounding cornea remains unharmed.

Extremely high precision in the creation of a corneal flap – even in patients with a thin cornea or serious vision defect.

Well-conceived – the new, curved VisuMax contact glass conforms to the natural shape of the cornea and prevents unnecessary stress on the eye.

Comfort factor – the two precision lasers, VisuMax and MEL 90 from ZEISS, both use a single, comfortable, patient supporting system. Particularly convenient for patients: The combination of MEL 90 and VisuMax avoids changing places between surgical steps.

Relaxed ambience – Discrete blue illumination creates a calming atmosphere during treatment.

    Vision defects:

    Light that goes astray

  • For clear vision the eyes, cornea and lens must be perfectly coordinated.
  • Nearsightedness (myopia)
  • Farsightedness (hyperopia)
  • Astigmatism

An eye with poor vision is like a camera that takes blurred pictures because the focal distance is not set properly.

Normal vision

The depth of the eye is too long or the refractive power of the cornea is too strong. The image on the retina is blurred because the point at which the light rays focus is in front of the retina.

Nearsightedness (myopia)

The depth of the eye is too short or the refractive power of the cornea is too weak. The image on the retina is blurred because the point at which the light rays focus is behind the retina.

Farsightedness (hyperopia)

The cornea is unevenly curved and the light rays do not focus to a single point on the retina and are distorted.


Precise Vision Femto-LASIK Common questions and answers

No doubt you have many questions in advance of laser surgery. Here you will find answers to the most important questions. This information cannot and is not intended to substitute for a detailed consultation with your eye specialist. After a thorough examination he or she will tell you whether laser correction is the right solution for you. Of course, your specialist will also inform you about possible risks and side effects.

First of all your eyes must be carefully examined. Besides refraction and corneal thickness, many other readings also play a role in evaluation. You will receive individual counselling from your eye specialist.
The first PRK was performed in 1987, the first LASIK in 1990. Since the mid-1990s the two methods have been scientifically recognized procedures. Since these early days, considerable progress has been made in diagnosis and laser technology. Carl Zeiss Meditec was the first company to market a Gaussian spot scanning laser in 1997, and the first commercially available integrated topography guided treatments (1998) and wavefront guided treatments in the year 2000.
Most types of vision defects which can be corrected with glasses or contact lenses can also be treated by laser. However, the permitted degree of laser correction varies from one country to another. The eye specialist can explain the relevant current regulations.
Presbyopia is a diminished ability of the natural lens to focus on near objects with age. The ability of the lens to be restored cannot be achieved by laser surgery. However, innovative and effective corneal sculpting programs can overcome this difficulty for many presbyopia sufferers, and suitable laser-based vision correction should be discussed with your laser eye specialist.
That depends on a number of diagnostic, health and age factors, e.g. degree of required correction or measured thickness of the cornea. You should discuss this matter with your eye specialist.
Depending on the indication and type of treatment, the two eyes may be treated on the same or different days.
After surgery you will receive drops and/or other medication, together with a post operation care instruction leaflet. The first check normally takes place the day after surgery. Further checks should follow at intervals of several weeks until you have regained stable and improved vision.
Normally the laser treatment can be performed on an outpatient basis. Patients are advised to bring a partner or friend and, if arriving by car, one who is able to drive them home.
Visual acuity will normally be restored very quickly after Precision Vision LASIK. At the first follow-up treatment your specialist will tell you whether you can drive a car.
Visual recovery after Precise Vision LASIK takes approximately two to three weeks, after PRK or LASEK approximately three months.

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