Corneal Wavefront Analyzer

Reliable and Comprehensive Pre/Post-Op Powerhouse

The KR-1W is a 5-in-1 instrument that combines aberrometry, topography, keratometry, pupillometry and auto-refraction into a single device. It is extremely easy to operate with a fully automated measurement process. Unparalleled functionality and reproducibility. The KR-1W will become the professional’s choice for comprehensive diagnosis of many ocular conditions.


Technology that revolutionizes practice workflow efficiency. Saving you time and elevating the patient experience.

Compare Automated Kerato-Refractometers

Comparison chart of Topcon Autorefractors

Key Features

  • 70+ YEARS OF REFRACTOMETERS – With over 70 years of experience designing and manufacturing high-performance refractometers, Topcon has developed the KR-1W with ease of use, flexibility, and reliability as core features.
  • 5 FUNCTIONS, 1 DEVICE – Capture aberrometry, topography, keratometry, pupillometry, and auto-refraction tests without moving the patient.
  • EASY-TO-USE – The large touchscreen panel and auto-alignment function make KR-1W simple to operate.
  • VERSATILE – Perform the five most important types of visual assessment for your cataract and refractive patients with a single instrument.
  • RELIABLE MEASUREMENT – Topcon’s Rotary Prism technology provides accurate, repeatable results.
  • EMR + DICOM CONNECTIVITY – Easily transport data across USB, LAN export, or DICOM for fast EMR connectivity.

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Refractive Power Measuring Range

Sphere Range

-25D to +22D (0.01D/0.12D/0.25D steps)

Cylinder Range

0D to ±10D (0.01D/0.12D/0.25D steps)

Axis Range

0° to 180° (1° /5°steps)

Measurable Area

Ø 8 mm (max.)

Measurable Minimum Pupil Diameter

Ø 2 mm

Corneal Curvature Measuring Range

Corneal Curvature Radius

5.00 mm to 10.00 mm (0.01 mm steps)

Corneal Refraction

67.5D~33.75D (0.01D/0.12D/0.25D steps)
(Proviso: corneal refractive index = 1.3375)

Corneal Astigmatism

0D to ± 10D (0.01D/0.12D/0.25D steps)

Corneal Astigmatism Axial Angle

0° to 180° (1° /5°steps)

Measurable Corneal Area

Ø 0.8 mm~Ø 9.2 mm (Proviso Radius corneal curvature = 8 mm)

Measurable PD Range

20~85 mm (1 mm step)

Export Output Terminal


KR-1W Brochure