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General| Category | Medical Equipment |
|---|---|
| Axial Length Accuracy | ± 0.02 mm |
| Anterior Chamber Depth Accuracy | ± 0.02 mm |
| Lens Thickness Accuracy | ± 0.02 mm |
| Measurement Resolution (Axial Length, Anterior Chamber Depth, Lens Thickness) | 0.01 mm |
| Data Storage | Internal memory |
| Power Requirements | 100-240 V AC, 50/60 Hz |
| Measurement Principle | Interferometry |
| Axial Length Range | 14 to 30 mm |
| Corneal Thickness Range | 200 to 1000 µm |
| Anterior Chamber Depth Range | 1.5 - 6.0 mm |
| Lens Thickness Range | 0.5 mm to 6.0 mm |
| Pupil Diameter Measurement Range | 2.0 mm to 8.0 mm |
| Measurement Resolution (Corneal Thickness) | 1 µm |
| IOL Calculation Formulas | Holladay 1, Hoffer Q, SRK/T, Haigis |
| Display | Color LCD |
| Data Output | Printer |
| Data Export | CSV |
| Connectivity | USB, Ethernet |
Defines where the device is intended for use.
Specifies the required characteristics of the patient for examination.
Details environmental requirements for transport, storage, and use.
Instructions for handling and checking the device upon arrival.
Critical warnings and precautions for installing the device.
Guidelines and warnings for safe operation and environmental considerations.
Guidance on verifying the accuracy and reasonability of measurement readings.
Information on calculating IOL power using measured data.
Citations for studies related to ocular biometry.
Guidance on using IOL constants for calculation accuracy.
Using IOL constants from immersion ultrasound biometry as a starting point.
Recalculating IOL constants from contact ultrasound biometry.
Information regarding potential hazards from optical radiation.
Procedures or recommendations for disinfecting the device.
Terms and conditions related to warranty and manufacturer liability.
Explanation of symbols used in the manual and on the device.
Overview of the fundamental structure of the device.
Lists and illustrates the main parts of the LS 900 examination unit.
Identifies the role and connection of the PC as the control unit.
Describes the optional instrument table for device positioning.
Instructions for connecting the device to a computer.
Steps for fitting a specific forehead band for use with the T-Cone.
Guidance on correctly positioning the patient for accurate measurements.
Instructions for using the optional Automated Positioning System.
Information and procedures for using the optional T-Cone.
Detailed steps for attaching the optional T-Cone to the device.
Procedure for performing measurements using the T-Cone.
Instructions on how to safely detach the T-Cone from the device.
How the patient should fixate during measurement for optimal results.
Overview of the different variables measured by the device.
Explanation of the A-Scan measurement and its parameters.
Description of the keratometry measurement process and data.
How the white-to-white distance is measured and represented.
Explanation of pupil diameter and visual axis measurements.
Steps to power on and start the LS 900 system.
Procedure for correctly shutting down the LS 900 system.
Specifies the weight of the LS 900 and LS 900 APS.
Details the power supply requirements and specifications.
Describes the different light sources used for measurements.
Details the measurement ranges for the Lenstar LS 900.
Measurement range and repeatability for CCT.
Measurement range and repeatability for ACD.
Measurement range and repeatability for LT.
Measurement range and repeatability for AL.
Measurement range and repeatability for Keratometry.
Measurement range and repeatability for WTW.
Measurement range for pupillometry.
Overview of the clinical study design for reproducibility.
Technical specifications for the optional T-Cone.
Details the accuracy of measurements for the T-Cone.
Human cornea reproducibility data for measurements.
How to perform functional checks and zero adjustments on the device.
Procedures for cleaning the main device and its components.
Specific maintenance requirements for the optional T-Cone.
List of available accessories and spare parts for the device.
Part numbers for accessories related to the LENSTAR LS 900.
Part numbers for accessories related to the T-Cone option.
Classification details for the LENSTAR LS 900 biometer.
Classification details for the optional T-Cone.
General information regarding the instrument's compliance with EMC standards.
Details on the electromagnetic emissions of the device.
Information on the device's immunity to electromagnetic interference.
Immunity guidelines for non-life support devices.
Recommended safe distances for communication devices.
