Description

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What’s Included

Nidek AL-Scan optical biometer main unit
Patient table with chinrest and headrest
All standard cables and power supply
90-day Digital Eye Center warranty on parts and workmanship

Condition & Warranty

Used. This Nidek AL-Scan optical biometer has been inspected and function-tested across all 6 measurement parameters. PCI axial length acquisition, 8-point keratometry, ACD, CCT, corneal diameter, and pupil diameter confirmed operational. 3D auto-tracking and auto-shot function verified. Covered by a 90-day warranty on parts and workmanship through Digital Eye Center.

Nidek AL-Scan Optical Biometer — Used PCI Biometer with 6-Parameter Measurement & IOL Calculation

The Nidek AL-Scan is a Partial Coherence Interferometry optical biometer that acquires six critical pre-surgical measurements — axial length, keratometry, anterior chamber depth, central corneal thickness, corneal diameter (white-to-white), and pupil diameter — in a single 10-second non-contact acquisition with 3D auto-tracking and auto-shot for operator-independent repeatability. This used Nidek AL-Scan optical biometer delivers the complete biometric dataset required for IOL power calculation in standard and advanced cataract surgery at a price point that makes PCI biometry accessible to practices currently performing manual or ultrasound biometry.

The Nidek AL-Scan uses 780 nm PCI to measure axial length with the reproducibility needed for accurate IOL power selection across the full range of cataract surgery cases — from standard phacoemulsification to complex post-refractive and high-axial-length eyes. Research published in the Journal of Refractive Surgery (National Library of Medicine, 2016) by Hoffer KJ and Savini G directly compared the Nidek AL-Scan with the IOLMaster 500 — confirming that the AL-Scan delivers PCI biometry measurements with accuracy and repeatability equivalent to the established clinical benchmark for optical biometry in cataract surgery planning.

Why Practices Choose the Nidek AL-Scan

6 measurements in one 10-second acquisition — Axial length, flat and steep keratometry (8-point corneal measurement), anterior chamber depth, central corneal thickness, corneal diameter, and pupil diameter (photopic and mesopic) are acquired simultaneously without patient repositioning or operator technique variation between parameters.
3D auto-tracking and auto-shot — The AL-Scan’s automated 3D alignment system tracks the eye in three dimensions and fires automatically when optimal alignment is achieved — removing the operator dependence that introduces variability in manually-triggered biometry and reducing the skill level required for consistent measurements in busy cataract pre-op schedules.
8-point keratometry for accurate corneal power — Eight keratometry measurement points distributed across the central cornea provide the average K values required by modern IOL formulas, with the multi-point measurement reducing the sensitivity to local corneal surface irregularities that degrade single-point keratometry accuracy.
PCI axial length at 780 nm — Partial Coherence Interferometry provides non-contact axial length measurement with reproducibility superior to contact ultrasound biometry — eliminating the corneal indentation artifact that systematically shortens apparent axial length in applanation biometry.
Integrated IOL calculation — multiple formula support — SRK/T, Haigis, Hoffer Q, and Holladay formulas are integrated in the AL-Scan IOL calculation module, enabling formula selection optimized for each eye’s biometric profile rather than defaulting to a single formula across all cases.
Dense cataract support via optional ultrasound — In eyes where media opacity prevents reliable PCI measurement, the AL-Scan supports integration with ultrasound axial length data for IOL calculation — extending biometric capability to the full cataract surgery case mix rather than requiring referral for dense cataracts.
Compact footprint for space-constrained practices — The AL-Scan’s compact design fits standard examination room or pre-op staging area layouts, enabling in-room biometry measurements without the dedicated biometry suite footprint required by larger optical biometer platforms.

Clinical Applications

Cataract surgery IOL power calculation — The AL-Scan provides all biometric inputs required for monofocal, toric, EDOF, and multifocal IOL power calculation: axial length, average K, ACD, CCT, and corneal diameter support the major IOL formulas in routine and complex phacoemulsification planning.
Toric IOL axis planning — Keratometry magnitude and axis from the 8-point corneal measurement provides the anterior corneal astigmatism data needed for toric IOL cylinder selection and alignment marking in astigmatic cataract patients.
Pre-operative biometry screening — High-volume cataract programs performing biometry the morning of or day before surgery benefit from the AL-Scan’s 10-second auto-shot acquisition workflow that processes multiple patients per hour without per-patient operator adjustment overhead.
Post-refractive surgery IOL planning — Accurate keratometry and ACD measurements from the AL-Scan provide the inputs for post-LASIK and post-PRK IOL calculation formulas (Haigis-L, ASCRS online) that require multi-parameter biometry data to estimate effective lens position in modified corneal geometry.
IOL formula comparison and selection — Integrated multi-formula calculation displays SRK/T, Haigis, Hoffer Q, and Holladay results simultaneously from a single measurement, enabling formula comparison and selection at the time of biometry without re-entering data into separate calculation platforms.
Replacing A-scan ultrasound biometry — Practices upgrading from contact or immersion ultrasound biometry gain the contact-free measurement, operator-independent reproducibility, and integrated keratometry that optical PCI biometry provides — converting a technician-skill-dependent measurement into a standardized workflow.

Who This Is For

Cataract surgery practices entering optical biometry — the used Nidek AL-Scan at $9,450 provides PCI biometry with integrated IOL calculation at a price accessible to practices currently performing contact or immersion ultrasound biometry, enabling the transition to optical non-contact measurement without the capital cost of premium biometer platforms.
High-volume cataract programs performing pre-op biometry on the day of surgery — the 3D auto-tracking and auto-shot workflow supports rapid patient throughput without per-patient operator adjustment, processing the full pre-op biometry case list without staff fatigue-related measurement variability.
Practices adding their first optical biometer — the AL-Scan’s integrated measurement and calculation workflow provides a complete biometry platform — PCI axial length, 8-point keratometry, ACD, CCT, WTW, and IOL calculation — in a single instrument without requiring separate keratometry or manual calculation steps.
ASCs and surgical centers supporting multiple cataract surgeons — the AL-Scan’s multi-formula IOL calculation allows each surgeon to use their preferred formula from a shared biometry measurement dataset without requiring surgeon-specific instruments or re-measurement on separate devices.
Budget-conscious cataract practices — at $9,450, the used Nidek AL-Scan delivers optical PCI biometry capability that would otherwise require a multiples-of-cost investment in new premium platforms, making IOL calculation quality comparable to larger instruments accessible to independent practices and single-surgeon offices.

Technical Specifications

Specification	Detail
Technology	Partial Coherence Interferometry (PCI)
Wavelength	780 nm
Measurements	Axial length, keratometry (8-point), ACD, CCT, corneal diameter (W-W), pupil diameter
Acquisition Time	~10 seconds (6-parameter simultaneous)
Tracking	3D auto-tracking and auto-shot
Keratometry Points	8-point corneal measurement
IOL Formulas	SRK/T, Haigis, Hoffer Q, Holladay
Dense Cataract	Optional ultrasound integration
Manufacturer	Nidek Co., Ltd., Japan
Condition	Used
Warranty	90 days

Compare Optical Biometer Options

Feature	Nidek AL-Scan	Zeiss IOLMaster 500	Zeiss IOLMaster 5.4
Technology	PCI 780 nm	PCI 780 nm	PCI 780 nm
Measurements	6 (incl. CCT, pupillometry)	5 (AL, K, ACD, WTW, pupil)	5 (AL, K, ACD, WTW, pupil)
Auto-Tracking	3D auto-track / auto-shot	Manual alignment	Manual alignment
Condition	Used	Refurbished	Refurbished
Price	$9,450	$12,825	$7,125