Getting fewer refractive surprises. ZEISS IOLMaster 700

ZEISS IOLMaster 700

SWEPT Source OCT biometer

The IOLMaster® 700 from ZEISS with SWEPT Source Biometry® builds upon almost 20 years of experience in optical biometry. Now with Total Keratometry (TK®) it once again demonstrates its technological leadership.

Total Keratometry has the potential to reduce refractive surprises to a minimum

Graham Barrett, M.D.

Total Keratometry

Measure the posterior corneal surface – new Barrett formulas

Now featuring Total Keratometry (TK®) the ZEISS IOLMaster 700 allows you to directly measure the posterior corneal surface using SWEPT Source OCT.

  • Two exclusive new formulas: Barrett TK Universal II and Barrett TK Toric
  • Can be used in classic IOL calculation formulas
  • No need for a second device, third-party software or an online calculator

Barrett True K formula with Total Keratometry (TK) improved outcome prediction

Get fewer refractive surprises

Patented Cornea-to-Retina Scan
Suspected tilted lens; image courtesy of Prof. W. Sekundo, Philipps University Hospital Marburg, Germany

Patented Cornea-to-Retina Scan

The patented Cornea-to-Retina Scan shows anatomical details on a longitudinal cut through the entire eye. Thus, unusual eye geometries, such as tilt or decentration of the crystalline lens, can be detected.  

Unique Fixation Check

The unique Fixation Check provides you with more confidence in optical biometry. Can you see the foveal pit? If so, you can reduce the risk of refractive surprises due to incorrect measurements caused by undetected poor fixation. If not, you can educate your patients to always fixate on target.

Visually verify what structure of the eye has been measured

With the patented Cornea-to-Retina Scan, complex interpretation of A-scans are no longer necessary. Potential sources of error can be eliminated.

Optimize your cataract workflow

Measure both eyes in less than 45 seconds. Alignment assistance functions make the results largely independent of the user and therefore easy to delegate.1

IOLMaster 700 measures dense cataracts
Case with very dense cataract that could be measured successfully with the ZEISS IOLMaster 700; image courtesy of Prof. M. de La Torre, DLT Ophthalmic Center, Peru

Achieve a cataract penetration rate of more than 99% and reduce the number of ultrasound cases by 92%, saving you valuable time.2

ZEISS IOLMaster 700 macular pathology
Macular hole: Fixation Check image (middle) combined with ZEISS CIRRUS retina OCT image (via photo editor program); Image courtesy of Prof. W. Sekundo, Philipps University Hospital Marburg, Germany

Get indications for macular pathologies with the Fixation Check. Although the ZEISS IOLMaster 700 is clearly not intended to be used for diagnostics, in high-volume practices the ability to detect these eyes preoperatively can be invaluable.3,4,5,6

ZEISS IOLMaster 700 - markerless toric IOL implantation

Precise and efficient markerless toric IOL alignment8, 9

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. Manual marking steps can be skipped for efficient9 and more precise8 toric IOL alignment with reduced residual astigmatism.10



Brochure: ZEISS IOLMaster 700

Getting fewer refractive surprises

12 page(s)
file size: 5,372 kB

Articles and clinical cases

Article: Measuring total corneal astigmatism: Why it matters and how to master it

Author: Eric D. Donnenfeld
Published in: Ocular Surgery News

2 page(s)
file size: 369 kB

Case Study: Fixation Check

Author: Prof. Sabong Srivannaboon
Published in: Cataract & Refractive Surgery Today Europe

1 page(s)
file size: 1,378 kB

Case Study: IOLMaster 700 in Extreme Cataract

Author: Prof. Mario de La Torre
Published in: Cataract & Refractive Surgery Today

1 page(s)
file size: 1,429 kB

Article: The IOLMaster 700 – New Technology Provides Increased Speed, ULIB Compatibility and Fewer Refractive Surprises

Author: Prof. Walter Sekundo
Published in: Cataract & Refractive Surgery Today

2 page(s)
file size: 165 kB

Article: IOLMaster 700 – Better Predictability and Optimized Workflow Compared with Other Biometers

Author: Prof. Oliver Findl
Published in: Cataract & Refractive Surgery Today Europe

2 page(s)
file size: 627 kB


Tutorial measurement and analysis
Tutorial IOL management
Tutorial non-toric IOL power calculation
Tutorial post LVC IOL power calculation
Tutorial exporting the reference image to ZEISS CALLISTO eye
Tutorial toric IOL power calculation

Total Keratometry – compendium

This compendium provides an overview on:

  • Why it’s important to measure the posterior corneal surface.
  • How TK differs from existing solutions.
  • Very promising initial clinical results.

Please enter your contact details to receive your download link via email.

IOLMaster 700 Compendium Total Keratomety

DICOM Conformance Statements

A list of DICOM 3.0 Conformance Statements for products from Carl Zeiss Meditec.

Services in focus


Support when you need it

Do you rely on high system availability? If your answer is yes, then why not consider our ZEISS OPTIME service agreements, which are designed to ensure the readiness of your medical equipment at all times.

ZEISS financial solutions

Support with tight budgets

Want the latest technology from ZEISS but have a tight budget? ZEISS Financial Solutions may well have the right financing options for you.


For medical equipment

Need immediate support? ZEISS Remote Service offers online support for customers with ZEISS OPTIME advanced and ZEISS OPTIME complete agreements.

Optimized lens constants


Download optimized lens constants for more than 300 IOL models based on the data from over 50,000 cataract surgeries.

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