Description
Condition & Warranty
Used. This Zeiss IOLMaster Version 5.5 Optical Biometer package has been fully tested and is in excellent working order. The laser interferometry engine captures rapid, highly repeatable axial length scans, the telecentric keratometry system aligns precisely, and the software database processes all lens calculation formulas instantly. The medical-grade electric table adjusts smoothly and quietly across its full vertical range. The unit shows minor signs of cosmetic wear as expected for used diagnostic equipment. Carefully tested before shipping. Covered by a 90-day warranty on parts and workmanship.
Zeiss IOLMaster Version 5.5 — Used Workstation with Electric Table
The Zeiss IOLMaster Version 5.5 is the world-renowned gold standard in non-contact optical biometry, engineered to provide high-precision measurements for intraocular lens (IOL) power calculations. By utilizing partial coherence interferometry (PCI), the IOLMaster 5.5 captures full axial length, corneal curvature (keratometry), anterior chamber depth (ACD), and white-to-white (WTW) horizontal corneal diameter without ever touching the patient’s cornea.
Version 5.5 software includes optimized signal processing algorithms for fast measurement acquisition and integrated advanced formulas such as Hoffer Q, Holladay 1 and 2, SRK/T, and the specialized Haigis-L algorithm. Haigis-L is the definitive clinical tool for calculating correct lens powers in post-refractive patients (post-LASIK, PRK, or LASEK) without requiring historical clinical data. Complete with an electric elevation table for ergonomic patient positioning, this used workstation guarantees reliable, highly reproducible readings that protect surgical outcomes.
Research published in the National Library of Medicine confirms that optical biometry via telecentric laser interferometry remains the most reliable baseline standard for achieving target emmetropia in premium multifocal and toric IOL supplementations, outperforming classic contact ultrasound biometry in reproducibility and patient comfort.
Why Practices Choose the Zeiss IOLMaster 5.5 Workstation
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Gold Standard Optical Biometry — Globally recognized baseline for highly accurate, non-contact IOL calculations, ensuring peak surgical predictability
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Distance-Independent Telecentric Keratometry — Telecentric optical design ensures that minor patient eye shifts do not compromise the accuracy of corneal curvature readings
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Haigis-L Post-Refractive Mode — Built-in mathematical formulas specifically optimized to calculate premium lens powers for post-LASIK, PRK, and LASEK eyes
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Sonolink Ultrasound Connectivity — Integrates directly with external immersion A-scan ultrasound units to easily transfer data for extremely dense, unmeasurable cataracts
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Included Electric Elevation Table — Premium, medical-grade automated table facilitates quick physical alignment and maintains superior structural stability during testing
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Non-Contact Patient Safety — Eliminates corneal abrasion risks, topical anesthesia requirements, and cross-contamination concerns associated with contact probes
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Seamless Surgical Suite Integration — Communicates natively with Zeiss FORUM networks and CALLISTO eye systems to assist with markerless toric lens alignment in the OR
Clinical Applications
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Pre-Operative Cataract Evaluations establishing definitive axial length, white-to-white, and corneal curvature data for standard and premium IOL selections
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Post-Refractive Lens Power Calculations using advanced internal formulas to eliminate refractive surprises in patients with a history of laser vision correction
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Toric IOL Planning Workflows utilizing precise, independent keratometric values to correctly map corneal astigmatism axes before surgery
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Axial Length Tracking providing a rapid, non-contact diagnostic mechanism useful in progressive myopia tracking protocols
Who This Is For
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Cataract and Refractive Surgeons requiring maximum precision and high-density tracking data to meet tough post-operative patient expectations
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High-Volume Comprehensive Eyecare Clinics needing an efficient, standalone pre-op biometry station to keep surgical pipelines moving smoothly
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Private Practices and Satellite Locations looking to add a flagship Zeiss biometer to a secondary lane without the immense overhead of brand-new technology
Technical Specifications
| Specification | Detail |
| Model | Zeiss IOLMaster (Version 5.5 Software) |
| Type | Non-Contact Optical Biometer |
| Measurement Parameters | Axial Length, Keratometry, Anterior Chamber Depth, White-to-White (WTW) |
| Axial Length Range | 14 to 38 mm |
| Keratometry Range | 5 to 10 mm (corneal radius) |
| Anterior Chamber Depth Range | 1.5 to 6.5 mm |
| White-to-White Range | 8 to 16 mm |
| Integrated Formulas | Haigis, Haigis-L, Hoffer Q, Holladay 1, Holladay 2, SRK II, SRK/T |
| Table Type | Integrated Medical-Grade Electric Elevation Table |
| Condition | Used |
| Warranty | 90-day warranty on parts and workmanship |






