Fully Assisted Refraction System
In the conventional refraction, the patient answers the operator’s questions. According to their answers, the operator performs subjective refraction such as refining refractive errors…
In the conventional refraction, the patient answers the operator’s questions. According to their answers, the operator performs subjective refraction such as refining refractive errors (sphere, cylinder, prism, and such) and proceeding to the next test. In this system, the patient responds to refraction questions by themselves using the Joystick Controller in response to the voice guide from the computer. The system application enables subjective refraction according to patient operation to determine the full correction.
Who Else Makes It
Concentrated in Jiangsu (5), Shanghai (3), Zhejiang (2). 4 of them are registered as contract manufacturers, able to build to a buyer’s own specification.
| Manufacturer | City | Province | Registered as | Device types |
|---|---|---|---|---|
| Wuxi Zontai Int’l Corporation Ltd. | Wuxi | Jiangsu | Contract manufacturer | 22 |
| Taiyuan North China Xinyuan Tech. Center (Co., Ltd.) | Taiyuan | Shaanxi | Contract manufacturer | 14 |
| Chongqing Yeasn Science-Technology Co., Ltd. | Chongqing | Chongqing | Contract manufacturer | 5 |
| Langfang FAR East Prosperous Optical Instrument Co., Ltd. | Langfang | Hebei | Contract manufacturer | 5 |
| Beijing Hongdee Corporation | Beijing | Beijing | Private-label distributor | 43 |
| Danyang NEW Hope Medical Equipment Co., Ltd. | Danyang | Jiangsu | Manufacturer | 38 |
| Taizhou City K&W International Trade Co., Ltd. | Jiangyan | Jiangsu | Repacker / relabeller | 38 |
| Lianyungang Tiannuo Optical Instrument Co., Ltd. | Lianyungang | Jiangsu | Contract manufacturer | 31 |
| Shanghai Link Instruments Co., Ltd. | Changzhou | Jiangsu | Manufacturer | 21 |
| Gino Optical (Shanghai) Co., Ltd. | Shanghai | Shanghai | Manufacturer | 15 |
| Shanghai Canton Optics Equipment Co., Ltd. | Shanghai | Shanghai | Manufacturer | 14 |
| Ningbo Ming Sing Optical R&D Co., Ltd. | Ningbo | Zhejiang | Repacker / relabeller | 9 |
Showing 12 of 15. All 15 manufacturers in China registered for Refractor, Manual, Non-Powered, Including Phoropter
Record
| Listed by | Nidek Incorporated, United States |
|---|---|
| FDA product code | HKN |
| Device type | Refractor, Manual, Non-Powered, Including Phoropter |
| Device class | Class 1 |
| Regulation | 21 CFR 886.1770 |
| Establishment | Specification developer, Manufacturer |
| Premarket notification | Exempt |
| Record published | 2026-03-27 |
Specifications
| MRI safety | Labeling does not contain MRI Safety Information |
|---|---|
| Prescription | Prescription only |
| Label carries | serial number |
Catalogue Numbers
| Catalogue number | Size | Status |
|---|---|---|
| FARS | In distribution |
Same Product Code
| Product | Sold by | Catalogue numbers |
|---|---|---|
| Yeasn | Chongqing Yeasn Science-Technology Co., Ltd. | 9 |
| Moptim | Shenzhen Certainn Technology Co., Ltd. | 4 |
| S4Optik | Innova Medical Ophthalmics | 3 |
| Refractor | Nidek Incorporated | 3 |
| Lombart | Innova Medical Ophthalmics | 3 |
| Vision-R 700 | Essilor International | 2 |
| Phoropter VRx | Reichert Inc. | 2 |
| Power Supply Unit for CV-5000 (Built-IN PC Type) | Topcon Corp. | 2 |
| Compu Vision CV-5000 | Topcon Corp. | 2 |
| Illuminated Phoropter | Reichert Inc. | 2 |
| Vision-R 800 | Essilor International | 2 |
| Visionix | Luneau Technology Operations | 2 |
Showing 12 of 40. All products under Refractor, Manual, Non-Powered, Including Phoropter
Recalls
2 of these are Class II. Class II means a temporary or reversible health consequence. Class III is unlikely to cause harm at all → typically a labelling or documentation fault. Volume alone is not a quality signal: a manufacturer that ships more recalls more.
| Initiated | FDA class | Root cause | Reason | Quantity | Closed |
|---|---|---|---|---|---|
| 2018-06-14 | Class III | Employee error | The lens bonding was incomplete on the refractor. | 85 instruments | 2020-06-03 |
| 2016-02-29 | Class II | Component design/selection | There has been a reoccurrence of an issue on the RT 5100 and RT 3100 Refractor of the Near Point Chart Arm lowering spontaneously with potential for slight injury to face or nose of patient. | 2703 separate serial numbers | 2018-09-24 |
| 2014-06-09 | Class II | Use error | Near Point Chart Arm of RT 5100 and RT-3100 Refractors may lower spontaneously with potential for patient injury. | ~4,285 units RT-5100; 167 units of RT-3100 | 2015-10-30 |
Source: U.S. FDA establishment registration and device listing records, public domain. Restructured for clarity and searchability. Not affiliated with or endorsed by the FDA. Records are records: nothing here is an offer of sale.