Zeiss IOLMaster

ULIB
User Group for Laser Interference Biometry

Zeiss IOLMaster - Software Version 5 improves handling through Advanced Technology signal processing

Advanced Technology simplifies operation and expands the measurement options in axial length measurement and keratometry. With the new Advanced Technology, the overhead in user interaction is reduced. Through a new type of algorithm, the signal-to-noise ratio of the axial length measurement signal is improved, and a measurement of the axial length is possible even with relatively strong clouding of the ocular media. The advanced signal processing capabilities of the new Advanced Techology software extend the IOLMaster's patient spectrum and reduce user intervention.

The optimal measurement setting of the keratometer in relation to the patient is displayed through an adjustment aid. An easy-to-understand traffic light indicator helps prevent faulty measurements. A green light signals correct measurements adjustment and optimal focus. Almost every initiation of a measurement can thus result in a valid measurement. Dependence of keratometry on the user was further reduced.

In both measurement modes and during IOL power calculation, the software displays additional information to facilitate interpretation of the data. The axial lengths and corneal radii of both eyes are checked for plausibility. This simplifies interpretation of measurement results and provides increased confidence.

Click here for further technical data as pdf-file.
Click here for more details on software version 4.00.
Click here for more details on software version 4.01.
Click here for more details on software version 5.xx (in English).
Click here for more details on software version 5.xx (in German).

New functions and features

Enhanced axial length signal analysis - Extended patient spectrum
The advanced signal processing in the axial length mode provides a composite signal with a much better SNR. A measurement of the axial length is possible even with relatively strong clouding of the ocular media. The IOLMaster Advanced Technology with Software Version 5 is capable of measuring more patients without user intervention.

Keratometry adjustment aid - Increased ease-of-use and user independency
A traffic light indicates the status of the system adjustment to the patient's eye. The keratometry adjustment aid can be activated in the Program Settings menue. If the automatic mode is activated three measurements are taken in a row, as long as the optimum measurement conditions (green light) have been reached. Once you have pressed the button in the joy stick this automatic mode is activated. Almost every initiation of a measurement can thus result in a valid measurement. Dependence of keratometry on the user was further reduced.

OD/OS Consistency check of AL and K - more confidence on problematic eyes
After axial length and keratometry measurements the software displays additional information to facilitate interpretation of the data. Measurement results of both eyes are checked and compared for plausibility. This simplifies interpretation of measurement results and provides increased confidence especially on problematic eyes.

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Last Revision: Oct 20, 2014 WH

New functions and features
Enhanced axial length signal analysis - Extended patient spectrum The advanced signal processing in the axial length mode provides a composite signal with a much better SNR. A measurement of the axial length is possible even with relatively strong clouding of the ocular media. The IOLMaster Advanced Technology with Software Version 5 is capable of measuring more patients without user intervention. Keratometry adjustment aid - Increased ease-of-use and user independency A traffic light indicates the status of the system adjustment to the patient's eye. The keratometry adjustment aid can be activated in the Program Settings menue. If the automatic mode is activated three measurements are taken in a row, as long as the optimum measurement conditions (green light) have been reached. Once you have pressed the button in the joy stick this automatic mode is activated. Almost every initiation of a measurement can thus result in a valid measurement. Dependence of keratometry on the user was further reduced. OD/OS Consistency check of AL and K - more confidence on problematic eyes After axial length and keratometry measurements the software displays additional information to facilitate interpretation of the data. Measurement results of both eyes are checked and compared for plausibility. This simplifies interpretation of measurement results and provides increased confidence especially on problematic eyes.