The ZEISS IOLMaster® 500 is the gold standard in optical biometry with more than 100 million successful IOL power calculations to date. With the new version of the ZEISS IOLMaster 500 you get a piece of cutting-edge technology that points the way to the future of optical biometry.
Any intraocular lens calculation is only as reliable as the lens constant it is based on. More than 40,000 sets of patient data created with the ZEISS IOLMaster are the basis of more than 200 optimized lens constants in the User Group for Laser Interference Biometry (ULIB) website - absolutely unique in the industry.1 Together with its one-of-a-kind distance independent telecentric keratometry and the exclusively integrated Holladay 2 formula, the gold standard in optical biometry helps you improve your refractive outcomes.2
The true test of a biometer is its performance with challenging eyes. In denser cataracts the ZEISS IOLMaster 500 achieves a measurement success ratio that is up to 20% higher than that of other optical biometry devices.3 Even with staphyloma, pseudophakic and silicone-filled eyes the ZEISS IOLMaster 500 measures along the visual axis, yielding the relevant axial distance. And with its Haigis-L formula on board the ZEISS IOLMaster 500 is dedicated to myopic and hyperopic post-LVC cases.
The results of a meta-analysis of 28 published clinical papers covering more than 1900 cases show that the reported clinical outcomes for the ZEISS IOLMaster with regard to residual astigmatism “[...] exceed, or are at least as good as those using manual or automated keratometry.”4
The new Option Reference Image is the starting point of a markerless toric IOL workflow: an image of the eye is taken along with the keratometry measurement. Both, reference images and keratometry data are transferred to the ZEISS CALLISTO eye® computer-assisted surgery system. Finally, all data needed for precise5 and markerless toric IOL alignment is injected into the eyepiece of the surgical microscope from ZEISS.
A well-designed user interface, plausibility checks, distance-independent measurements and an up to 4 times faster reading compared to other optical devices lead to a one-of-a-kind usability and reduced chairtime.6 A difference you, your team and your patients will notice every day.
1 Haigis W, http://www.augenklinik.uni-wuerzburg.de/ulib/
2 Aristodemou P, Knox Cartwright NE, Sparrow JM, Johnston RL, Intraocular lens formula constant optimization and partial coherence interferometry biometry: Refractive outcomes in 8108 eyes after cataract surgery, J Cataract Refract Surg. 2011 Jan;37(1):50-62
3 Rivero L, IOLMaster Version 5 vs. Lenstar LS900, presented at 2010 AAO – MEACO Joint Meeting in Chicago, Illinois.
4 Bullimore MA, MCOptom, PhD, FAAO, The IOLMaster and determining toric IOL Power, white paper
5 Clinical data of Prof. Findl / Dr. Hirnschall presented at ESCRS 2013 – technically verified pre- / intraoperative matching precision ± 1.0° in mean
6 Chen YA, Hirnschall N, Findl O, Evaluation of 2 new optical biometry devices and comparison with the current gold standard biometer, J Cataract Refract Surg. 2011 Mar;37(3):513-517
|Technical data IOLMaster 500 from ZEISS|
|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
|ZEISS eyecare data management system FORUM®
|ZEISS computer-assisted surgery system CALLISTO eye (via USB)
|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|
The new Option Reference Image supports a markerless toric IOL workflow. It references the patient’s astigmatic axis relative to his/her eye ball position using small blood vessels on the eye as landmarks. Reference image and keratometry data are transferred to the ZEISS CALLISTO eye® computer-assisted cataract surgery system. Finally, all data needed for precise1 and markerless toric IOL alignment is injected in color and high resolution into the eyepiece of the surgical microscope from ZEISS.
1 Clinical data of Prof. Findl / Dr. Hirnschall presented at ESCRS 2013 – technically verified pre- / intraoperative matching precision ± 1.0° in mean
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