Biometry

High-precision data for cataract and refractive surgery since 2008

Biometry

Haag-Streit optical biometers support the daily quest of the cataract and refractive surgeon and their ophthalmic technicians to provide excellent refractive results to the patient. Our Lenstar and Eyestar biometers deliver precise measurements, intuitive data representation, and latest-generation planning & analysis tools to support reliable diagnosis and surgery. Quick measurement acquisition, automation support, and ergonomic user interfaces ensure that the process of diagnostic data acquisition is pleasant for surgeon and patient alike.

Eyestar 900

Biometry Swept-source OCT for cataract & refractive surgery

Lenstar 900

Biometry All-in-one cataract planning platform

Compare our products

	Eyestar 900	Lenstar 900
Applications
Cataract surgery	●	●
Refractive surgery	●	●
Anterior chamber analysis	●	−
IOL calculation	●	●
Premium IOL calculation	●	○
Myopia management	○	○
Biometry data
Biometry (AL, ACD, LT, CCT)	●	●
Keratometry (Dual zone anterior)	●	●
Anterior corneal topography	●	○
Posterior corneal topography	●	−
Pupillometry	●	●
White-to-white	●	●
Measurements
Technology	Swept-Source-OCT	OCLR
A-Scan biometry	●	●
B-Scan biometry	●
Measurement pattern	Mandala-Scan, Virtual B-Scan, A-Scan	A-Scan
Access to A-scan	●	●
Access to B-scan	●	−
Manual exclusion of outliers	●
Adjustment of A-scan measurement gates	●
Central Corneal Thickness (CCT)	●
Anterior Chamber Depth (ACD)	●	●
Anatomic Anterior Chamber Depth (AD)	●	●
Lens Thickness (LT)	●
Vitrous Chamber Depth (VCD)	−	−
Standard deviation of repeated measurements		●
Keratometry measurements
Technology	Dual-Zone Reflective Keratometry, 32 Marker Points	Dual-Zone Reflective Keratometry, 32 Marker Points
Spherical power	●	●
Astigmatism power and orientation	●	●
Flat meridian radius	●	●
Steep meridian radius	●	●
Flat meridian orientation	●	●
Steep meridian orientation	●	●
Topography measurements
Technology	Swept-Source-OCT	Optional Placido, 11-Ring
Anterior simulated keratometry	●	○
Posterior simulated keratometry	●	−
Anterior simulated astigmatism (power and orientation)	●
Posterior simulated astigmatism (power and orientation)	●
Axial curvature map	●	○
Tangential curvature map	●	○
Spherical elevation map	●	○
Torical elevation map	●
Pachymetry map	●	−
Zernike analysis / wavefront analysis	●
Vision simulation	●
Corneal maps diameter (mm / inch)		up to 6mm / up to 0.24 inches
OCT imaging
Technology	Swept Source OCT
Radial scans	●
Display of the maximal crystalline lens tilt	●
Display of the maximal IOL tilt	●
Measurement of the lens/IOL tilt	●
Pupillometry measurements
Technology	Infra-Red Photography	Infra-Red Photography
Pupil Diameter (PD)	●	●
Pupil center (barycenter)	●	●
Infra-red image	●
White-to-white
Technology	Hi-Res Color Photography	Hi-Res Color Photography
Iris diameter (ID)	●	●
Iris center (barycenter)	●	●
Color photography	●
Measurement process
Eye positioning	Fully automatic	Semi automatic or manual
Eye tracking	Automatic	Automatic or manual
Dense cataract mode	●	●
Measurement mode selection	●	●
"Normal" eye	●	●
Aphakic eye	●	●
Pseudophakic eye	●	●
Silicone-filled eye	●	●
Mode combination	●	●
IOL calculation
Hill-RBF Method	●
Hill-RBF / Abulafia Koch Toric	●
Barrett Universal II	●	●
Barrett True-K Toric	●	●
Barrett Toric	●
Haigis	●	●
Hoffer Q	●	●
Holladay 1	●	●
Olsen	●
SRK II and SRK/T	●	●
Masket / Modified Masket	●	●
Shammas No-History	●	●
IOL workflow
Personalization of IOL constants	●	●
IOL calculation on viewing stations	●
Myopia management
AMMC by Kaymak	○	○
Axial Length Growth Speed	○	○
Axial Length Normative Data	○	○
Refractive Myopia Progression Prediction	○	○
Myopia Report for Parent Education	○	○
Software modules
EyeSuite Basic	●	●
EyeSuite Biometry (Cataract Suite)	●	●
EyeSuite Anterior Chamber Suite	●	−
EyeSuite IOL Toric Planner	●	○
EyeSuite Myopia	○	○
EyeSuite Myopia AMMC	○	○
Accessories
Instrument tables	○	○
Headrest	●	○
Chinrest	●	○
External PC (Windows only)	○	●
Networking
Electronic medical record interfaces (EyeSuite Script Language, GDT, EyeSuite Command Line Interface)	●	●
DICOM (SCU)	○	○
EyeSuite Viewing Stations	●	●
Connect to network printer	●	●
Connect to shared folder	●	●
Connect to remote database	●	●
Data import
EyeSuite Script Language Refraction Data	●
Dimensions
Width (cm / inch)	48 cm / 18.9 inches	31 cm / 12.2 inches
Depth (cm / inch)	56 cm / 22 inches	26 cm / 10.23 inches
Height (cm / inch )	46 cm / 18.11 inches	42 cm / 16.53 inches
Weight (kg / pounds)	31 kg / 68.34 lbs
Electrical requirements
Line voltage	100 - 240V	100-240V
Line frequency	50 - 60Hz	50-60Hz
Power consumption	200VA
Safety certifications
Laser Class 1	●	●

● standard | ○ optional | − not available | □ not recommended

Global innovator in IOL power prediction

Through collaboration with leading surgeons

Since 2008, Haag-Streit has collaborated with renowned surgeons worldwide to enhance the outcomes of IOL power calculations in various scenarios, such as standard cases, toric lenses, and post-refractive situations. This extensive expertise has been integrated into EyeSuite IOL—Haag-Streit's software suite for IOL power calculations— and is continuously enhanced to incorporate the most up-to-date formulae available.

Leading technology

Staying at the forefront of biometry devices

Since 2008, Haag-Streit has been a pioneer in optical biometry devices, with the introduction of Lenstar 900 being one of the first. This technology revolutionized axial biometry measurements, providing faster and more precise results for eye care professionals. We continuously integrate state-of-the-art technologies like swept-source OCT in new products, like the Eyestar 900. In 2022, we further enhanced our products with the addition of the Anterior Chamber Suite.

Clinically validated

Excellent outcomes in any patient

Since its introduction in 2008, the prediction accuracy and excellent outcomes of the Lenstar 900 have been proven in more than 150* studies. With thousands of devices sold, millions of patients have enjoyed excellent outcomes when Lenstar 900 was part of their cataract planning process.

*Based on a PubMed search, 5 May 2023, Keyword “Lenstar 900”