Automated Binocular Refraction System

With Chronos you can spend more time on what matters most…your patients.

Chronos combines binocular autorefraction, keratometry and subjective refraction in a single, compact device that can be placed anywhere in the practice. SightPilot® guided refraction software allows refraction to be delegated to a trained technician, so all refractive data can be captured as part of the pre-test process and exported to your EHR. When you enter the exam room, you can review the results and, if desired, quickly confirm the refraction.

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Watch this quick Chronos demo

Features and Benefits

Chronos Features

Delegate Data Collection
SightPilot software guides the operator through the entire process, so you can delegate the upfront refraction and acuity testing to a technician.

Maximize Doctor-Patient Time
Enter the exam room with all refraction data at your fingertips to make the most of your time with each patient.

Save Space
Chronos combines an autorefractometer, a keratometer, phoropter and acuity testing chart into a single instrument with a compact footprint that can be placed anywhere in the practice.

Grow Your Practice
Use the time saved to see more patients, add a new specialty to the practice or spend more time counseling patients about their eye health.

Chronos in Clinical Practice

Topcon Chronos is the all-in-one* digital refraction solution

Chronos combines binocular autorefraction, keratometry and subjective refraction in a single, compact device that can be placed anywhere in the practice. Now you can transform the time you spend on refraction into quality time with your patients.

*All–in–one system combines binocular autorefraction and keratometry with subjective binocular testing and visual acuity.

Practice Refraction Workflow

with SOLOS Automated Lens Analyzer + Chronos
+ CV-5000S Phoropter

1. Refractive data and previous spectacles loaded into Chronos before doctor enters exam room.
2. Chronos streamlines the refraction process to deliver time savings that may be used at the discretion of the doctor/practice.
3. Topcon SOLOS, Automatic Lens Analyzer
4. Topcon CV-5000S, Phoropter

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Product Specifications

CHRONOS SPECIFICATIONS
	Objective Measurement
Refraction Measurement Range	Spherical refractive power: -25D – +22D Cylindrical refractive power: -10D – 0D Cylinder axial angle: 1° – 180°
Corneal Curvature Measurement Range	Corneal curvature radius: 5.00mm – 10.00mm Corneal refractive power: 67.50D – 33.75D (Conversion value when the corneal refractive ratio is 1.3375) Corneal principal meridian direction: 1° – 180° Corneal principal meridian direction: 1° – 180°
Minimum Measurement Unit	Spherical/cylindrical refractive power: 0.12D Cylinder axial angle: 1° Corneal curvature radius: 0.01mm Corneal refractive power: 0.12D Corneal principal meridian direction: 1°
Display of Measured Value	Displayed on the screen of the operation controller.
Minimum Measurable Pupil Diameter	Φ2.0mm
PD Measurement Range	50mm – 80mm
Minimum PD Measurement Unit	0.5mm
	Subjective Measurement
Refraction Measurement Range	Spherical refractive power: -18.00D ≤ Equivalent spherical power ≤ +18.00D Cylindrical refractive power: -8.00D ≤ Cylindrical refractive power (Cylindrical power) ≤ 0.00D Cylinder axial angle: 1° – 180° Horizontal prism (One eye movable range): ±15.0Δ Vertical prism (One eye movable range): ±2.5Δ
Minimum Measurement Range	Spherical/ADD refractive power: 0.25D Cylindrical refractive power: 0.25D Cylinder axial angle: 1° Prism refractive power: 0.1Δ
Test Distance	Far-/Near-point test distance can be set between 25cm and 6.096m
Visual Acuity Measurement Range	0.05 – 1.6
Chart	Visual acuity test chart, spherical power correction test chart, astigmatism test chart and binocular function test chart
Background Luminance	155±15cd/m²
Display of Measured Value	Displayed on the screen of the operation controller.
Record of Measured Value	Printing by thermal printer/external printer, data output
Measuring Head Movement	Right-and-left direction: Inside 9mm to Outside 12.5mm Up-and-down direction: Down 15mm to Up 15mm Back-and-forth direction: Forward: 20mm – Backward: 20mm
Measuring Head Rotary Angle	Convergence 17.5° to Divergence 8.5° (Eyeball torsion axis center)
	Other Specifications
Main Unit Dimensions and Weight	Dimensions: 20.1-21.2in (H) x 26.4-30.2in (W) x 10.9-14.1in (D)/ 510-540mm (H) × 671766mm (W) × 278-357mm (D) Weight: 68.8lb/31.2 kg
Power Supply Unit Dimensions and Weight	Dimensions: 10.9in (H) x 4.6in (W) x 7.8in (D)/ 276mm (H) x 117mm (W) x 197mm (D) Weight: 7.7lb/3.5 kg
Electric Rating	Source voltage: AC100 – 240V Frequency: 50 – 60Hz Power input: 160VA