MEL 90 Excimer Laser
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Matching your profile precisely. ZEISS MEL 90
reliabiltyMADE BY ZEISS
Blending vision into better outcomes1. ZEISS PRESBYOND

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ZEISS MEL 90 Excimer Laser

  • Product Information

    Advancing excimer laser technology

    The use of excimer laser technology in refractive surgery starts in 1986 – with ZEISS. The MEL® 90 carries that legacy forward. Successfully combining years of expertise and innovative performance features, it offers users a highly rewarding handling experience.

    Specially designed for the needs of the modern refractive surgeon, the ZEISS MEL 90 incorporates proven safety as well as individually configurable options. Unique product qualities like the FLEXIQUENCE® switch function (250 Hz / 500 Hz), the ablation profile Triple-A and the outstanding intra-operative ablation speed of up to 1.3 seconds per diopter create entirely new treatment prospects.

    FLEXIQUENCE  Applied flexibility

    A true novelty – the FLEXIQUENCE switch function lets you flexibly choose between 250 Hz and 500 Hz frequency. It allows you to combine your previous clinical experience with excimer technology as well as the innovative advantages of the MEL 90. In fact, you can have twice the speed in a fraction of a second with a simple touch of the finger – enabling you to leverage both proven reliability and new treatment opportunities.

    Triple-A  Predictable and gentle

    The MEL 90 also features the Triple-A Advanced Ablation Algorithm. As a single ablation profile for a wide range of sphero-cylindrical (SCA) corrections, it simplifies treatment planning. Triple-A offers a high degree of precision and predictability. In addition to intelligent energy correction, it comprises an aspherically optimized design that also focuses on minimal tissue removal. This results in gentle treatments of standard, but also eyes with higher and lower level of ametropia. All combined into one single ablation algorithm: Triple-A.

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  • Technical Data
    Laser data
    Type ArF excimer laser
    (laser class 4 according to
    IEC 60825-1:2001 and IEC 60825-1:2007)
    Wavelength 193 nm
    Frequency FLEXIQUENCE® 250 Hz / 500 Hz
    Fixation laser
    Type Solid-state laser
    (laser class 1 according to IEC 60825-1:2001
    and IEC 60825-1:2007)
    Wavelength 532 nm
    System data
    290 kg with gas cylinder
    Weight of patient support system 232 kg
    Dimensions (W x D x H) 1.63 m x 0.73 m x 1.48 m – 1.70 m
    Power supply 100 V AC; 50/60 Hz; 17.5 A
    120 V AC; 50/60 Hz; 14.6 A
    208, 220, 230, 240 V AC; 50/60 Hz; 7.9 A
    Approval CE mark as per Medical Device Directive 93/42/EWG
    Gas supply Integrated ArF-Premix cylinder 10 l
    Surgical microscope OPMI® pico with integrated HD video camera
    Illumination Ring illumination: stepless adjustment; sectional light; satellite illumination; optional slit lamp illumination
    Active eye tracker Infrared, pupil and limbus tracking, 1050 frames per second (fps), manual ablation center selection, automatic Pupil Center Shift Correction
    CCA+ (plume removal system) Integrated into the device, automatic adaptation for
    250 Hz / 500 Hz operation
    Optional Monitor with touch screen, keyboard, printer,
    CRS-Master, PRESBYOND® Laser Blended Vision
    Spot scanning parameters
    Beam dimensions
    0.7 mm FWHM (full width at half maximum),
    Gaussian beam profile
    Phototherapeutic keratectomy
    Area ablation Programmable PTK shaping
    Treatment range
    According to CE guidelines
    -12 D to +3 D (up to 3.0 D cyl)
    Laser radiation
  • Applications

    A true team player with a wide performance spectrum

    MEL® 90 excimer laser is the powerful addition to the ZEISS Refractive Laser Landscape. The interaction between three leading edge products: MEL 90, VisuMax® and CRS-Master®, support a streamlined workflow and efficient patient management.

    Performance spectrum of MEL 90

    250 Hz 500 Hz
    Femto-LASIK Femto-LASIK
    • PRESBYOND® Laser Blended Vision
    • Individualized, topography-guided treatments
    • Laser-independent sphero-cylindrical (SCA) treatment planning

    VisuMax – Precision in all its facets

    The ZEISS VisuMax is a groundbreaking femtosecond system noted for its outstanding incision precision and speed as well as its gentle treatment qualities – whether for flap cuts, keratoplasty and incisions for ICR or the option SMILE®.

    – Simple treatment planning

    The ZEISS CRS-Master enables efficient treatment planning – even outside of the OR – for conventional as well as customized LASIK, Femto-LASIK, PRK and LASEK corrections. With its comprehensive capabilities, the CRS-Master is a valuable instrument for virtually any practice environment.


    Femto-LASIK with MEL 90 excimer laser and VisuMax femtosecond system

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    Combined with VisuMax femtosecond system, the MEL 90 excimer laser offers a variety of advantages and possibilities for surgeons and patients alike – an optimally coordinated system solution for refractive laser surgery.

    The MEL 90 supports superior vision correction, for example, with the gentle ablation profile Triple-A and FLEXIQUENCE®. With the 500 Hz option, it enables even shorter ablation times, thereby also enhancing patient well-being.

    Special comfort is provided through the pivoting patient supporting system, so that the patient is easily transferred between the surgical steps from the VisuMax femtosecond system to the MEL 90. The communication between the platforms creates additional workflow ease, as the treatment planning and data entry needs to be done only at the excimer laser. The patient and the surgeon experience the Femto-LASIK surgery as a fast and integrated process.

    LASIK with MEL 90

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    The highly precise Triple-A profile, the very short ablation time, an active eye tracker, with excellent feedback times as well as a variety of other product features help surgeons to achieve excellent results with their LASIK treatments.
    When performing LASIK for myopia at 500 Hz, MEL 90 can intra-operatively ablate 1 diopter in as little as 1.3 seconds. The treatment planning and data entry can either be done on the MEL 90 or with the optional CRS-Master.

    PRK with MEL 90

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    The MEL 90 is designed for refractive corneal surgery not only using LASIK but also PRK. PRK treatment can be used to correct myopia within a range of up to -12 D plus up to -3 D astigmatism and hyperopia within a range of up to +3 D including +3 D astigmatism.

    For surface ablations the MEL 90 utilizes an extra gentle mode including adaptation of the plume removal air flow. The MEL 90 sculpts the corneal tissue to correct the visual defect in just a few seconds.

    PRESBYOND Laser Blended Vision


    The MEL 90 is also a first-rate platform for treating presbyopic patients. With the optional PRESBYOND Laser Blended Vision module for CRS-Master, ZEISS offers an advanced and true binocular laser correction method that far exceeds the limitations of conventional monovision. This solution enables excellent near, intermediate and distance visual acuity and is a clear treatment choice for the fast growing demographic of presbyopic patients.

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  • Benefits

    Your preferences precisely

    When viewed closely, every refractive surgeon works somewhat differently, has personal preferences and needs regarding system handling and fosters his own surgical style. You will love the way the MEL® 90 takes all of these important factors into account.

    MEL 90 accuracy

    MEL 90 power
    With its unique FLEXIQUENCE® switch function (250 Hz and 500 Hz operation) and additional configuration options the MEL 90 is a true customized power package.

    MEL 90 accuracy
    The Triple-A profile enables fast, safe and highly precise treatments. Its excellent predictability, even with astigmatism and high level of ametropia, offers additional safety.

    MEL 90 accuracy
    The Triple-A profile enables fast, safe and highly precise treatments. Its excellent predictability, even with astigmatism and high level of ametropia, offers additional safety.

    Your workflow precisely

    You will especially value the treatment-oriented functions the MEL 90 offers. Designed to make your work noticeably easier, they are also efficient and cost-effective. You can program the system to precisely fit your needs and that of your OR team - thereby adding focus to your overall workflow. You will love it.

    MEL 90 teamwork

    MEL 90 connectivity
    The workflow-optimized compatibility of the MEL 90, VisuMax® and CRS-Master® ensures a high level of practice consistency. An HD video port, network printer and PDF export capabilities offer additional workflow support.

    MEL 90 teamwork
    As a true team player, the MEL 90 greatly simplifies the interaction between the surgeon, assistant staff and system technology. When equipped with a second workstation, it can be configured to optimally complement the treatment routine of the OR team.

    MEL 90 flexibility
    Flexible touch screen positioning and optional keyboard control let you design your workstation just the way you want it.

    Your expectations precisely

    Priority one, of course, is the satisfaction of your patients, which is largely dependent upon the safety and reliability of the treatment. The MEL 90 combines high-quality elements and performance to help you optimally fulfill your customers' requirements. You and your patients will be delighted with the excellent clinical results.

    MEL 90 outcomes

    MEL 90 intelligence
    The Triple-A profile is based on an intelligent combination of refractive correction and clever energy distribution. It enables an aspherically optimized design with minimal ablation depth. As a result, treatments are faster and save tissue.

    MEL 90 atmosphere
    The unique, sensor-controlled CCA+ plume removal system supports optimal atmospheric conditions around the patient‘s eye – thereby also significantly improving the predictability of the results.

    MEL 90 outcomes
    The MEL 90 can be precisely tailored to the individual needs of the modern refractive surgical practice. Its preinstalled functions also offer surgeons optimal support for achieving excellent treatment results.

    MEL 90 from ZEISS

  • Services


    Support whenever you need it

    Do you rely on high system availability? If your answer is yes, then why not consider our ZEISS OPTIME service agreements, which are designed to ensure the readiness of your medical equipment at all times.

    More about ZEISS OPTIME

    Financial Solutions from ZEISS

    The smart way to acquire ZEISS technology

    Want the latest technology from ZEISS despite a tight budget? ZEISS Financial Solutions might have the right financing options for you.

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  • Media Library

    PRESBYOND Laser Blended Vision

    Customized. All distances. Immediate.

    page(s): 7
    file size: 15,236 kB

    MEL 90 from ZEISS

    Advancing excimer laser technology

    page(s): 18
    file size: 29,341 kB

    MEL 90 Web App

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    LASIK with MEL 90

    Type of file: mp4
    Filesize: 9.2 MB



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    PRK with MEL 90

    Type of file: mp4
    Filesize: 9.9 MB



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    FLEXIQUENCE Femto-LASIK with VisuMax and MEL 90

    Type of file: mp4
    Filesize: 10.7 MB



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    Type of file: mp4
    Filesize: 7.8 MB



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    MEL 90 – Trailer

    Type of file: mp4
    Filesize: 32.8 MB



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    MEL 90 – Explore the excimer laser in 3D

    Type of file: mp4
    Filesize: 59.8 MB



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    Reasons for choosing the Mel 90 – Dr Sri Ganesh

    Type of file: mp4
    Filesize: 17.6 MB



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    Reasons for choosing the Mel 90 – Dr Khalid Sabti

    Type of file: mp4
    Filesize: 9.4 MB



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    Reasons for choosing the Mel 90 – Dr Rainer Wiltfang

    Type of file: mp4
    Filesize: 14.5 MB



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    PRESBYOND Laser Blended Vision Trailer

    Type of file: mp4
    Filesize: 23.9 MB


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  • 1 Reference to clinical outcomes as compared to monovision. Data on file.
  • 2 ReLEx® and SMILE® are registered trademarks of Carl Zeiss Meditec AG.