Subscribe to Newsletter
Subspecialties Imaging & Diagnostics, Business and Innovation, Cataract, Cornea / Ocular Surface, Refractive

True Measurements, Fewer Assumptions

sponsored by Heidelberg Engineering

It’s all in the image 
ANTERION® from Heidelberg Engineering is a comprehensive device for optical biometry and IOL power calculations. It provides spectacular, informative images of the anterior segment by combining swept-source OCT technology with eye tracking. The resulting images enable precise measurements for optimal cataract and anterior segment surgery.

Make the difference in challenging eyes 
An increasing number of patients present with irregular eye geometries, which can make calculating predictable refractive outcomes a modern challenge. Among these difficult cases are patients with previous laser vision correction, short eyes, or eyes with complex corneal shapes and pathologies. ANTERION helps clinicians cope with these cases by providing unique cornea data, precise preoperative measurements, various IOL calculation methods, and image-based lens assessment.

Figure 1. ANTERION swept-source OCT image of a healthy eye.

Unique cornea data to assess complex geometries 
ANTERION’s corneal measurements are derived from tomography, pachymetry, and wavefront analysis. Cornea data is based on 16,640 A-scans over an 8 mm zone and details both anterior and posterior corneal surfaces. The image-based measurements can help identify irregular corneas and pathologies and facilitate optimal IOL power calculation.

Precise measurements based on high-resolution images 
ANTERION’s clear SS-OCT images are fundamental to predictable refractive outcomes. High-resolution imaging allows precise OCT segmentation of the corneal surfaces and facilitates highly accurate preoperative measurements. Within one acquisition, all relevant biometric measurements are captured: full and central corneal analysis, anterior chamber depth, lens thickness, axial length, and many more.

Figure 2. Corneal maps detailing the anterior and posterior corneal surfaces after refractive surgery.

Advanced methods for IOL power calculation 
ANTERION’s spheric and toric IOL calculator library includes established IOL formulas as well as an interface to the OKULIX ray tracing application. This method utilizes corneal tomographic measurements and considers anterior chamber depth as well as lens thickness to calculate IOL power based on ray tracing the pseudophakic eye with the selected IOL model in position. Ray tracing calculations populated with ANTERION data have been shown to provide excellent outcomes in eyes with previous laser refractive surgery (1).

Assessment of lens position 
ANTERION provides additional information for surgical planning and follow-up. Lens vault can be assessed and the visualization and location of phakic lenses, IOLs, ICLs, and previous surgical procedures can be reviewed in great detail. Furthermore, accurate and reproducible angle measurements can be generated to provide full analysis of anterior chamber geometry.

Figure 3. OU toric IOL calculator accounting for corneal astigmatism, incision location, and surgically induced astigmatism.

More than biometry 
ANTERION is more than a high-end biometer for cataract surgery. It is a multidisciplinary imaging and measurement device that can grow to meet practice needs. Cornea and refractive surgeons, glaucoma specialists, and general ophthalmic practitioners can benefit from four available apps. 

Figure 4. Evaluation of the same eye before and after cataract surgery, including selected measurement overlays for anterior chamber angles, spur-to-spur distance, and lens vault.

Receive content, products, events as well as relevant industry updates from The Ophthalmologist and its sponsors.

When you click “Subscribe” we will email you a link, which you must click to verify the email address above and activate your subscription. If you do not receive this email, please contact us at [email protected].
If you wish to unsubscribe, you can update your preferences at any point.

  1. B Gjerdrum et al., “Refractive precision of ray tracing IOL calculations based on OCT data versus traditional IOL calculation formulas based on reflectometry in patients with a history of laser vision correction for myopia,” Clin Ophthalmol, 15, 845 (2021). PMID: 33664562.
Related Case Studies
The Missing Piece of the Dry Eye Puzzle

| Contributed by Quidel

Uncovering Ocular Comorbidity

| Contributed by Quidel

Finding Ocular Surface Inflammation

| Contributed by Quidel

Related Product Profiles
Uncover the Unique DNA of SPECTRALIS®

| Contributed by Heidelberg Engineering

Subspecialties Cornea / Ocular Surface
Tear Osmolarity – Empowering. Established. Essential.

| Contributed by TearLab

Subspecialties Retina
ForeseeHome® – remote monitoring to help detect wet AMD earlier and improve outcomes

| Contributed by Notal Vision

Product Profiles

Access our product directory to see the latest products and services from our industry partners

Most Popular
Register to The Ophthalmologist

Register to access our FREE online portfolio, request the magazine in print and manage your preferences.

You will benefit from:
  • Unlimited access to ALL articles
  • News, interviews & opinions from leading industry experts
  • Receive print (and PDF) copies of The Ophthalmologist magazine



The Ophthalmologist website is intended solely for the eyes of healthcare professionals. Please confirm below: