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✓ Certified Professional Seller Haag-Streit LENSTAR LS 900 APS
Haag-Streit LENSTAR LS 900 APS
Haag-Streit LENSTAR LS 900 APS
Haag-Streit LENSTAR LS 900 APS
Haag-Streit LENSTAR LS 900 APS
Medical Diagnostic Equipment
Refurbished

Haag-Streit LENSTAR LS 900 APS

Product Code: MDIE-ODE-837

The measuring head positions itself, so one operator runs the biometry list.

The LENSTAR LS 900 APS is a high-precision optical biometer designed for advanced cataract surgery planning. It measures multiple eye parameters in a single scan and provides accurate IOL power calculation. Known for its reliability and advanced technology, it is widely used in modern ophthalmology clinics.

Sections
Biometer
Categories
Medical Diagnostic Equipment
Condition
Refurbished
Seller Type
Certified Professional Seller
CE & ISO Certified
Global Shipping
Supplier: Medigear
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The Lenstar LS 900 APS from Haag-Streit is an optical biometer built for cataract surgery planning in ophthalmology clinics and eye hospitals. Optical low-coherence reflectometry with a superluminescent diode at 820 nm measures axial length from 14 to 32 mm at 0.01 mm resolution and central corneal thickness from 300 to 800 µm. Lens thickness runs from 0.5 to 6.5 mm, keratometry radius from 5 to 10.5 mm and axis from 0 to 180°; white-to-white from 7 to 16 mm; and pupillometry from 2 to 13 mm.

Its defining strength is staffing load. The APS gives hybrid positioning, and the measuring head moves autonomously during the automated measurement, so one trained member of staff can run a biometry list from the first patient to the last.

Keratometry uses two rings of sixteen points, at 1.65 and 2.3 mm in diameter, for a standard eye of 7.8 mm radius. EyeSuite software calculates IOL power with Haigis, Hoffer Q, Holladay I, SRK/T, SRK II and Olsen formulas, and the EyeSuite IOL Toric Planner and optional T-Cone topography add toric and corneal work. Pupil size comes from digital photography, together with the shift of the visual axis towards the pupil centre, from the same acquisition. Patients must be at least 6 years old. The unit is classified to EN 60601-1, and the supply is 100–240 V at 50–60 Hz and 30.6 W.

The unit measures 260 mm in length, 310 mm in width and 420 mm in height. It is available to business buyers in more than 80 countries.

Ophthalmology clinics, cataract surgery services and eye hospitals use the LS 900 APS to measure the eye before lens surgery. Ophthalmologists, optometrists, opticians, nurses and researchers operate it, and the readings inform intraocular lens power selection, toric planning and the follow-up of corneal shape.

The LS 900 APS suits services where a biometry list is run by a small team. The APS gives hybrid positioning, and the measuring head moves autonomously during the automated measurement, so the operator seats the patient, starts the examination and watches the screen.

Axial length from 14 to 32 mm, central corneal thickness, lens thickness, keratometry, white-to-white and pupil size are gathered in one session, and phakic ranges are stated for each. EyeSuite then calculates IOL power with Haigis, Hoffer Q, Holladay I, SRK/T, SRK II and Olsen formulas, and the IOL Toric Planner supports toric cases.

Corneal work can be extended with optional T-Cone topography, which images the central 6 mm with 11 Placido rings. Pupil size and the shift of the visual axis come from digital photography. Keratometry points sit on two rings of sixteen, at 1.65 and 2.3 mm in diameter for a standard eye, and radius is reported from 5 to 10.5 mm with an axis from 0 to 180°. In vivo repeatability is stated at one standard deviation for each parameter, ±0.035 mm for axial length among them, so a service can judge each reading against a published figure. The unit weighs 6.6 kg and sits on a stable table in a pre-test room, with an external computer running EyeSuite. Its supply is 100–240 V at 50–60 Hz, and it is classified to EN 60601-1.

Self-positioning measuring head

The APS provides hybrid positioning. The head moves autonomously during the automated measurement.

Small team, full list

One trained member of staff can run the biometry list. The operator seats the patient and watches the screen.

Complete biometric set

Axial length, corneal thickness, lens thickness, keratometry, pupil size and white-to-white are gathered together. Each has a stated range.

Stated repeatability

In vivo repeatability is ±0.035 mm for axial length. It is ±2.3 µm for corneal thickness.

Non-contact measurement

Optical low-coherence reflectometry measures without touching the eye. The unit is laser class I.

Six IOL formulas

Haigis, Hoffer Q, Holladay I, SRK/T, SRK II and Olsen formulas are available in EyeSuite. A toric planner is included as an option.

Optional topography

T-Cone adds 11-ring Placido topography of the central 6 mm. It works from the same instrument.

Compact and light

The unit measures 260 × 310 × 420 mm and weighs 6.6 kg. It sits on a stable table.

Class IIa under MDR

Haag-Streit classifies the unit as Class IIa under EU Regulation 2017/745. It is classified under EN 60601-1.

Low-coherence reflectometer

The instrument measures using optical low-coherence reflectometry. A superluminescent diode at 820 nm is the source.

Axial length

Axial length is measured from 14 to 32 mm. Resolution is 0.01 mm.

Corneal thickness

Central corneal thickness runs from 300 to 800 µm. Resolution is 1 µm.

Lens thickness

Lens thickness runs from 0.5 to 6.5 mm. Resolution is 0.01 mm.

Keratometry

Radius is measured from 5 to 10.5 mm and axis from 0 to 180°. Two rings of sixteen points are used.

White-to-white

White-to-white runs from 7 to 16 mm. Resolution is 0.01 mm.

Pupillometry

Pupil diameter runs from 2 to 13 mm. It is taken from digital photography.

Visual axis shift

The shift of the visual axis towards the pupil centre is reported. It comes from the same photograph.

APS positioning

Hybrid positioning moves the measuring head autonomously. The head needs free movement in any direction.

IOL calculation

EyeSuite calculates IOL power with six formulas. Haigis, Hoffer Q, Holladay I, SRK/T, SRK II and Olsen are included.

Toric planner

The EyeSuite IOL Toric Planner supports toric planning. It works with the biometric data.

T-Cone topography

The optional module gives 11-ring Placido topography. It covers the central 6 mm.

USB connection

The unit connects to a computer through a 2 m USB cable. The EyeSuite software runs on that computer.

Power

The supply is 100–240 V at 50–60 Hz and 30.6 W. A medical-grade power supply is provided.

Operating conditions

The unit operates from +10 to +35 °C at 30 to 90% relative humidity. Air pressure is 800 to 1060 hPa.

The LS 900 APS suits ophthalmology clinics, cataract surgery services and eye hospitals that want optical biometry run by a small team. Its deciding strength is staffing load: hybrid positioning moves the measuring head autonomously, so one trained operator can work through a biometry list. Axial length from 14 to 32 mm, corneal thickness, lens thickness, keratometry, white-to-white and pupil size are gathered together, and EyeSuite applies six IOL formulas and a toric planner to the result. Optional T-Cone topography extends the unit to the central 6 mm of the cornea. The unit is classified to EN 60601-1 and operates from 100 to 240 V. The LS 900 APS weighs 6.6 kg.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

It measures axial length from 14 to 32 mm, central corneal thickness from 300 to 800 µm and lens thickness from 0.5 to 6.5 mm. Keratometry radius runs from 5 to 10.5 mm, white-to-white from 7 to 16 mm and pupil size from 2 to 13 mm. These ranges apply to phakic eyes.

It is a non-invasive, non-contact optical low-coherence reflectometry instrument. A superluminescent diode at 820 nm measures the eye length. The unit is laser class I under EN 60825-1.

Hybrid positioning of the measuring head comes with the APS. Autonomous movement of the head runs during the automated measurement. The operator seats the patient and watches the screen.

Measurement points sit on two rings of sixteen points each. The rings have diameters of 1.65 and 2.3 mm for a standard eye. Radius is reported from 5 to 10.5 mm and axis from 0 to 180°.

In vivo repeatability at one standard deviation is ±0.035 mm for axial length and ±2.3 µm for corneal thickness. For lens thickness, it is ±0.08 mm, and for keratometry radius,s ±0.03 mm. White-to-white repeatability is ±0.04 mm.

EyeSuite software calculates IOL power with Haigis, Hoffer Q, Holladay I, SRK/T, SRK II and Olsen formulas. The EyeSuite IOL Toric Planner supports toric planning. A computer runs the software.

Optional T-Cone topography adds an 11-ring Placido image of the central 6 mm of the cornea. It extends the unit to corneal shape work. It is added to the same instrument.

Pupil diameter is measured from digital photography, from 2 to 13 mm at 0.01 mm resolution. The unit also reports the shift of the visual axis towards the pupil centre.

Qualified medical professionals such as ophthalmologists, optometrists, opticians, nurses and researchers use it. Patients must be at least 6 years old. The unit is for professional healthcare settings with attenuated ambient lighting.

The supply is 100–240 V at 50–60 Hz and 30.6 W. The unit measures 260 × 310 × 420 mm and weighs 6.6 kg. It operates from +10 to +35 °C at 30 to 90% relative humidity.