Zeiss IOLMaster Customer Service: 1-877-486-7473 ext. 4030
Intended Use
The IOL Master is to be used only for the measurement of axial length, corneal radii, anterior chamber depth and optionally for the determination of 'white-to-white' of the human eye, as well as for the calculation of the required intraocular lens.
- The ZEISS IOLMaster 700 is an integral part of the ZEISS Cataract Suite. A reference image is acquired and used for intraoperative matching with the live eye image during cataract surgery. Both reference images and keratometry data are transferred to the ZEISS CALLISTO eye ®.
- Zeiss IOLMaster Pdf User Manuals. View online or download Zeiss IOLMaster User Manual.
While the ZEISS IOLMaster 700 allows users to modify the range and step size of sphere or spherical equivalent and cylinder for individual IOLs within a definable range, some IOL manufacturers deliver their toric IOL with inconsistent cylinder steps. Here you find a possible workaround. If the lens power calculation is based on IOLMaster measurements, only lens constants optimized for use with the ZEISS IOLMaster should be applied. Optimized lens constants for the calculation of intraocular lens power with the ZEISS IOLMaster are published by the User Group for Laser Interference Biometry (ULIB) on its website. While the ZEISS IOLMaster 700 allows users to modify the range and step size of sphere or spherical equivalent and cylinder for individual IOLs within a definable range, some IOL manufacturers deliver their toric IOL with inconsistent cylinder steps. Here you find a possible workaround.
Responsibility for using the IOLMaster other than as intended lies with the user.
The IOL Master may only be used in combination with accessories delivered by Carl Zeiss Meditec. Please consult Carl Zeiss Service regarding the use of other accessories.
Package Contents
The IOLMaster is delivered in completely assembled form, packed in foam material.
The enclosed accessory box contains the following components:
- Keyboard
- Power cable
- Dust cover
- Test eye, in its own case
- 2x CD/RW (formatted)
Save the original packaging for storing the IOLMaster during extended periods of non-use or for returning it to Carl Zeiss Meditec, or dispose of it properly.
Functional Description
The IOLMaster is a combined biometry device for measurements on the human eye required for the preoperative computation of intraocular lens power.
It is capable of fast and precise consecutive measurement of the following eye parameters in one session: axial length, corneal curvature, anterior chamber depth and optionally 'white-to-white'. All measurements are non-contact, providing excellent patient comfort.
The axial length measurement is based on a patented interference optical method known as partial coherence interferometry (PCI). The displayed results of the axial length measurements are compatible with the ultrasonic immersion measurements of axial length via the use of an internal, statistically verified calculation algorithm. The familiar formula for IOL calculation can thus be used.
However, the lens constants must be changed for use with the PCI method. Please consult the scientific literature on this subject.
The corneal curvature is determined by measuring the distance between reflected light images projected onto the cornea. The anterior chamber depth is determined as the distance between the optical sections of the crystalline lens and the cornea produced by lateral slit illumination.
'White-to-white' is determined from the image of the iris.
The individual measurement procedures are automated, so that the operator is only required to adjust the device to the patient’s eye and initiate the measurement. For this reason the complex biometry of the eye can be rapidly learnt with the IOLMaster, but should be practised with the greatest of care and attention to detail.
Extensive integrated safety features (independent redundant hard and software safety features) ensure maximum safety for both the patient and operator when using the IOLMaster.
The control program for the computer in the IOLMaster base runs under Windows. A backlit LCD serves to observe the patient's eye and display the readings. The IOL Master is controlled by the joystick and computer keyboard with integrated touch-pad.
Based on the readings, the program can make suggestions for the choice of intraocular lens strengths. The latter are based on internationally accepted calculation formulas. The Haigis, HofferQ, Holladay, SRK II and SRK/T formulas are implemented in the software.1
The Haigis-L formula may be used to calculate IOL's following myopic LASIK/PRK.1
The refractive history or contact lens method may be used to correct the measured corneal radii/refraction following refractive corneal surgery.1
Selected phakic lens implants may be calculated with the Phakic IOL tab.1
An IOL database is likewise implemented. Prior to calculation, the latter must be filled with data for the desired lens.
On the basis of postoperative refraction results, the lens constants entered into the calculation formulas may be optimized (personalized) for each individual user.
Carl Zeiss Iol Master
References1
Carl Zeiss Iol Master User Manual Pdf
Literature on the formula (for specific questions contact Carl Zeiss Meditec):
- Haigis: http://ocusoft.de/ulib/
- HofferQ:HOFFER KJ: The Hoffer Q formula: A comparison of theoretic and regressionformulas. J Cataract Refract Surg, 19:700-712, 1993; ERRATA 20:677, 1994
- Holladay:HOLLADAY JT, PRAGER TC, CHANDLER TY, MUSGROVE KH, LEWIS JW, RUIZ RS: Athree-part system for refining intraocular lens power calculations. J Cataract RefractSurg, 14:17-24, 1988
- SRKII:RETZLAFF J: A new intraocular lens calculation formula, Am Intra-Ocular ImplantSoc J 6:148-152, 1980
- SRK/T:RETZLAFF J, SANDERS DR, KRAFF MC: Development of the SRK/T intraocular lensimplant power calculation formula. J Cataract Refract Surg 16 (3):333-340, 1990
- Haigis-L:HAIGIS W: publication in preparation
- Correction of corneal radii/refraction after refractive corneal surgery:
- HOLLADAY JT: IOL calculations following RK Refract Corneal Surg. 5(3):203, 1989HOFFER KJ: Intraocular lens power calculation for eyes after refractive keratotomy.J Refract Surg. 11:490:493, 1995
- Calculation of phakic implants:
vd HEIJDE GL, FECHNER PU, WORST JGF: Optical consequences of implantation ofa negative intraocular lens in myopic patients. Klin MB1 Augenheilk 192:99-102,1988
HOLLADAY JT: Refractive power calculations for intraocular lenses in the phakiceye. Am J Ophthalmol 116:63-66, 1993
HAIGIS W: Biometry in complicated situations, 9th DGII Convention 1995, Rochelset al (publ.), Springer, 17-26, 1996
ZEISS IOL Master 500 A-Scan All-in-One Biometer
The IOL Master 500 is dedicated to lowhassle biometry and high-confidence IOL selection. Designed for robustness, reliability and exceptional system integrity. The IOL Master 500 offers a wide range of built-in IOL power calculation options, including the latest Haigis and Holladay formulas.
IOLMaster 500 at a glance
• All-in-one biometer: axial length and keratometry measurements as well as IOL power calculation in one device
• Dual Mode: Axial length and keratometry measurements without unnecessary manual interaction
• Easy patient adjustments: Distance independence of axial length and keratometry
• Composite Signal: For best-in-class cataract penetration
• Flexible platform: Automatic or manual mode for customized treatments
• Robust platform: Fully integrated system components, including formulas
• One consistent Graphical user interface: for all formulas, including Holladay 2
• Most comprehensive set of formulas: Includes fourth generation Haigis and Holladay 2
• Holladay 2 onboard: Incorporated into the IOLMaster 500 formula selection; no need to export data, reducing transcription errors
• Haigis-L formula: For post-LVC patients
• Measurements along visual axis: For relevant axial distance, even in eyes with staphyloma
• Measures challenging eyes: Pseudophakic and siliconefilled eyes as well as eyes with phakic IOL
• More comprehensive IOL Calculation: for virtually all common IOL types
• Phakic IOL calculation: Both anterior and posterior
• ULIB database: Contains continuously optimized IOL lens constants to improve refractive outcomes
• Convenience: Sonolink for integrating Accutome A-Scan synergy ultrasound device
• Data integration: Into FORUM data management system
• DICOM interface: For integration into EMR systems
Technical Data:
Measurement Range Axial length 14 – 38 mm
Corneal Radii 5 – 10 mm
Anterior Chamber Depth 1.5 – 6.5 mm
White-to-white 8 -16 mm
Display Scaling Axial Length 0.01 mm
Corneal Radii 0.01 mm
Anterior Chamber Depth 0.01 mm
White-to-white 0.1 mm
IOL Calculation Formulas
SRK® II, SRK® / T, Holladay 1 and 2, Hoffer Q, Haigis
Clinical history and contact lens fitting method for calculation of corneal refractive power following refractive corneal surgery
Haigis-L IOL calculation for eyes following myopic / hyperopic LASIK / PRK / LASEK surgery
Calculation of phakic anterior and posterior chamber implants
Optimization of IOL constants
Interfaces Ultrasound data link (to Accutome A-Scan synergy)
ZEISS data archive and review solution FORUM
ZEISS OR management system CALLISTO eye
Data interface for electronic medical record (EMR) / patient management systems (PMS)
Data export to USB storage media
Export database for Holladay IOL Consultant and HIC.SOAP Pro
Ethernet port for network connection and network printer
Line voltage 100 – 240 V ± 10 % (self sensing)
Line frequency 50 – 60 Hz
Performance consumption: max. 75 VA
Laser class 1
The IOL Master 500 is dedicated to lowhassle biometry and high-confidence IOL selection. Designed for robustness, reliability and exceptional system integrity. The IOL Master 500 offers a wide range of built-in IOL power calculation options, including the latest Haigis and Holladay formulas.
IOLMaster 500 at a glance
• All-in-one biometer: axial length and keratometry measurements as well as IOL power calculation in one device
• Dual Mode: Axial length and keratometry measurements without unnecessary manual interaction
• Easy patient adjustments: Distance independence of axial length and keratometry
• Composite Signal: For best-in-class cataract penetration
• Flexible platform: Automatic or manual mode for customized treatments
• Robust platform: Fully integrated system components, including formulas
• One consistent Graphical user interface: for all formulas, including Holladay 2
• Most comprehensive set of formulas: Includes fourth generation Haigis and Holladay 2
• Holladay 2 onboard: Incorporated into the IOLMaster 500 formula selection; no need to export data, reducing transcription errors
• Haigis-L formula: For post-LVC patients
• Measurements along visual axis: For relevant axial distance, even in eyes with staphyloma
• Measures challenging eyes: Pseudophakic and siliconefilled eyes as well as eyes with phakic IOL
• More comprehensive IOL Calculation: for virtually all common IOL types
• Phakic IOL calculation: Both anterior and posterior
• ULIB database: Contains continuously optimized IOL lens constants to improve refractive outcomes
• Convenience: Sonolink for integrating Accutome A-Scan synergy ultrasound device
• Data integration: Into FORUM data management system
• DICOM interface: For integration into EMR systems
Technical Data:
Measurement Range Axial length 14 – 38 mm
Corneal Radii 5 – 10 mm
Anterior Chamber Depth 1.5 – 6.5 mm
White-to-white 8 -16 mm
Display Scaling Axial Length 0.01 mm
Corneal Radii 0.01 mm
Anterior Chamber Depth 0.01 mm
White-to-white 0.1 mm
IOL Calculation Formulas
SRK® II, SRK® / T, Holladay 1 and 2, Hoffer Q, Haigis
Clinical history and contact lens fitting method for calculation of corneal refractive power following refractive corneal surgery
Haigis-L IOL calculation for eyes following myopic / hyperopic LASIK / PRK / LASEK surgery
Calculation of phakic anterior and posterior chamber implants
Optimization of IOL constants
Interfaces Ultrasound data link (to Accutome A-Scan synergy)
ZEISS data archive and review solution FORUM
ZEISS OR management system CALLISTO eye
Data interface for electronic medical record (EMR) / patient management systems (PMS)
Data export to USB storage media
Export database for Holladay IOL Consultant and HIC.SOAP Pro
Ethernet port for network connection and network printer
Line voltage 100 – 240 V ± 10 % (self sensing)
Line frequency 50 – 60 Hz
Performance consumption: max. 75 VA
Laser class 1