Zeiss Iolmaster 500 – Refurbished

Description

What’s Included

• Zeiss IOLMaster 500 main unit (zeiss iolmaster 500, partial coherence interferometry biometer)
• Integrated display and measurement console
• Chin rest and forehead support assembly
• 6-month Digital Eye Center warranty

Condition & Warranty

Refurbished. This Zeiss IOLMaster 500 has been professionally inspected, calibrated, and verified for measurement accuracy across all biometric parameters. Covered by a 6-month warranty on parts and workmanship.

Zeiss IOLMaster 500 — Refurbished Optical Biometer

The Zeiss IOLMaster 500 established partial coherence interferometry (PCI) as the gold standard for non-contact optical biometry in cataract surgery planning. This refurbished zeiss iolmaster 500 measures axial length (14–38 mm), six-point keratometry (5–10 mm corneal radii), anterior chamber depth (1.5–6.5 mm), and white-to-white distance (8–16 mm) — all without patient contact — using the same distance-independent telecentric keratometry found only in Zeiss optical biometers. Its cataract penetration rate exceeds 93%, and both eyes can be measured in under 60 seconds, making it one of the most efficient biometers in high-volume cataract surgery practices. Research published in International Ophthalmology via the National Library of Medicine confirms PCI-based optical biometry delivers the accuracy required for precise IOL power calculation across standard and complex refractive cases.

Why Practices Choose the Zeiss IOLMaster 500

• Partial coherence interferometry (PCI) — the IOLMaster 500 uses PCI rather than ultrasound, eliminating the corneal contact, anesthetic requirement, and infection risk of A-scan biometry while delivering superior reproducibility for routine IOL power calculation.
• Distance-independent telecentric keratometry — Zeiss’s unique telecentric keratometry design eliminates the measurement error caused by variable working distance that affects non-telecentric keratometers, producing consistent K-readings regardless of patient positioning.
• 93%+ cataract penetration rate — the IOLMaster 500 successfully measures through dense posterior subcapsular and nuclear cataracts that block competing optical biometers, reducing the number of patients who require ultrasound A-scan as a fallback.
• Both eyes in under 60 seconds — the IOLMaster 500 measures up to 4× faster than alternative optical biometers, supporting high-volume cataract practices without creating bottlenecks in pre-operative workup flow.
• Complete biometric dataset — axial length, keratometry, ACD, and white-to-white in one non-contact measurement session provides surgeons everything needed for most IOL formulas including Haigis, Holladay, SRK/T, and Barrett Universal II.
• Extensive clinical validation — more peer-reviewed publications have used the IOLMaster 500 as the reference standard than any other optical biometer, giving practices confidence in outcomes and formula compatibility.
• Established software ecosystem — the IOLMaster 500 integrates with major EMR and OR scheduling platforms and supports data export for IOL formula apps, eliminating manual transcription of biometric values.

Clinical Applications

• Pre-operative cataract planning — complete biometric workup including axial length, K-readings, and ACD for IOL power calculation in standard and high-complexity cataract cases.
• Premium IOL selection — precise keratometry and axial length data supports toric IOL axis planning and multifocal/EDOF IOL sizing for refractive cataract surgery.
• Dense cataract measurement — PCI technology measures through mature and posterior subcapsular cataracts where OCT-based biometers may fail, reducing ultrasound fallback rates.
• Post-refractive cataract surgery — axial length measurement accuracy in post-LASIK and post-PRK eyes supports adjusted IOL formulas for this challenging patient population.
• Pediatric and uncooperative patients — non-contact measurement eliminates the need for topical anesthetic or probe contact, reducing patient anxiety and improving measurement success rates.

Who This Is For

• Cataract and refractive surgery practices requiring a validated, high-throughput non-contact biometer for daily pre-operative workup.
• Ophthalmology clinics transitioning from ultrasound A-scan to non-contact optical biometry for improved accuracy and patient comfort.
• Ambulatory surgical centers equipping a pre-operative measurement station with an industry-standard biometer at a fraction of new equipment cost.
• Academic and teaching programs that train residents on the IOLMaster 500, the most widely published biometer in the cataract surgery literature.

Technical Specifications

Practices pairing the IOLMaster 500 with posterior segment imaging often choose the Zeiss Cirrus 5000 HD-OCT for OCT-based pre-operative macular evaluation alongside biometric workup. For corneal shape assessment in post-refractive cataract candidates, the Zeiss Atlas 9000 corneal topographer complements the IOLMaster 500’s keratometry data.

Questions about the Zeiss IOLMaster 500? Contact us for availability and shipping details.