Zeiss IOLMaster 500 Biometer (Pre-Owned)

Brand: Zeiss


The Zeiss IOLMaster 500 is a great choice for cataract surgeons looking for a reliable, fast and easy-to-use optical biometer for measurements they can depend on

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The Zeiss IOLMaster 500 is the gold standard in optical biometry with more than 100 million successful IOL power calculations to date. This fast and easy-to-use device provides refractive outcomes you can trust, advanced measurement of challenging eyes, and precise, efficient markerless toric IOL alignment.


  • Improving refractive outcomes – Exclusive formula integration, more than 270 optimized lens constants and unique telecentric keratometry for refractive outcomes you can trust.
  • Advanced measurement of challenging eyes – Up to 20% higher measurement success ratio for dense cataracts. Measurement along the visual axis, even with staphyloma, pseudophakic and silicone-filled eyes.
  • Proven toric outcomes – Toric outcomes proven by large number of peer-reviewed, published scientific papers.
  • Markerless toric IOL alignment – Reference image capabilities, as the starting point of a game-changing, streamlined markerless toric workflow
  • Ease of use – Well-designed user interface, plausibility checks, distance-independent measurements and speedy readings for one-of-a-kind usability and reduced chairtime.
  • Superb connectivity: Ties in the A-scan ultrasound – Universal ultrasound interface to connect the dedicated ultrasound A-scan device for a better workflow and improved quality.

Includes warranty covering parts, labor, and shipping. All certified pre-owned (used) inventory from Lombart is completely refurbished, tested, and re-calibrated by factory-trained technicians. Please allow up to 4 weeks for delivery.

Product may differ from image based on availability. Please contact us for details. All pre-owned and demo products are subject to availability.


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


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