Zeiss IOLMaster 500 Optical Biometer

Out of stock
LEAD TIME: Estimated Ship: TBD
WARRANTY: 3 Months

Listing Terms & Conditions

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The ZEISS IOLMaster 500 is an optical biometer that has become the gold standard in optical biometry, with over 100 million successful IOL power calculations to date. It is a reliable, fast, and easy-to-use optical biometer for cataract surgeons.

The ZEISS IOLMaster 500 is designed for robustness, reliability, and exceptional system integrity, offering a wide range of built-in IOL power calculation options, including the latest Haigis and Holladay formulas. It is an excellent choice for cataract surgeons looking for a reliable, fast, and easy-to-use optical biometer for measurements they can depend on.


  • Distance-independent telecentric keratometry, which enables robust and repeatable measurements.
  • More than 300 optimized lens constants for improved refractive outcomes.
  • Fast and easy-to-use design with well-designed user interfaces and traffic light indicators.
  • Advanced measurement of challenging eyes, with up to 20% higher measurement success in denser cataracts.
  • Haigis-L formula for IOL calculation for eyes following myopic/hyperopic LASIK/PRK/LASEK surgery.
  • Interfaces with ZEISS eyecare data management system FORUM® and ZEISS computer-assisted cataract surgery system CALLISTO eye.
  • Ethernet port for network connection and network printer.


    • Manufacturer: Zeiss
    • Manufacturer (MPN) OEM: IOL 500
    • SKU: ER-ZEISS500
    • Category: Optical Biometer
    • Condition: New/Refurbished
    • Warranty: 3 Months

    • Measurement Range:
      • Axial length 14 – 38 mm
      • Corneal radii 5 – 10 mm
      • Anterior chamber depth 1.5 – 6.5 mm
      • White-to-white 8 – 16 mm

    • Display Scaling:
      • Axial length 0.01 mm
      • Corneal radii 0.01 mm
      • Anterior chamber depth 0.01 mm
      • White-to-white 0.1 mm

    • IOL Calculation Formulas:
      • Haigis, Hoffer® Q, Holladay 1 and 2, SRK® II, SRK® / T
      • Clinical history and contact lens fitting method for calculation of corneal refractive power following refractive corneal surgery
      • Haigis-L IOL calculation for eyes following myopic / hyperopic LASIK / PRK / LASEK surgery
      • Calculation of phakic anterior and posterior chamber implants
      • Optimization of IOL constants

    • Interfaces:
      • Ultrasound data link
      • ZEISS eyecare data management system FORUM®
      • ZEISS computer-assisted cataract surgery system CALLISTO eye (via USB)
      • Data interface for electronic medical record (EMR) / patient management systems (PMS)
      • Data export to USB storage media
      • Export database for Holladay IOL Consultant and HIC.SOAP Pro
      • Ethernet port for network connection and network printer

    • Line Voltage:
      • 100 – 240 V ± 10 % (self sensing)

    • Line Frequency:
      • 50 – 60 Hz

    • Performance Consumption:
      • max. 75 VA

    • Laser Class:
      • 1

    In addition please acknowledge the following disclaimer:

    * IMPORTANT - PLEASE READ BEFORE PURCHASING! * All pictures of items being sold are used for reference purposes and are described as accurately as possible. If there is an error in a listing, we will try and resolve any issues to the best of our abilities that may arise before or after a sale. Complete units all come with a power cord and DO NOT come with any cables, sensors, manuals, accessories etc. unless otherwise noted in the description.

    Purchaser agrees that seller is not liable for any injuries or damages of any kind associated in any way with this equipment. Purchaser agrees to indemnify and hold harmless seller and seller's officers, directors, employees, agents, and shareholders against any and all claims, liabilities, obligations, demands, cost and expenses of every kind and nature, including but not limited to attorney's fees and litigation expenses, from or related to the equipment and any use thereof.

    * NOTE - FDA Regulation and Certification: "The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, we will verify your status as an authorized purchaser of this item before shipping of the item."

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