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Data / Medical devices / Refractometer, Ophthalmic

Refractometer, Ophthalmic (HKO): 64 FDA-registered makers in 12 countries

64 establishments in 12 countries are registered with the FDA to make Refractometer, Ophthalmic (product code HKO, Class 1, 21 CFR 886.1760). 0 of them have a 510(k) clearance or PMA approval on file and 3 have a recall event. The FDA has issued 35 510(k) clearances under this code, the latest on December 19, 2003, and lists 5 recall events (0 Class I). FDA data exported November 2, 2026.

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Product code
HKO
Device class
1
Regulation
886.1760
Medical specialty
Ophthalmic

Makers by country

CountryMakers
China15
United States13
Japan11
India7
South Korea6
Germany4
Italy2
France2
Brazil1
Spain1
Israel1
Mexico1

Makers of Refractometer, Ophthalmic

Registered establishments that manufacture, contract manufacture, remanufacture, reprocess or own the specification of this device, with the 510(k) clearances, PMA approvals and recalls the FDA files under each. Best documented first.

MakerLocationRole510(k) clearancesLatest clearancePMA approvalsRecall eventsClass ISource
123 SeeBoston, MA, United StatesManufacturer0000api.fda.gov
Adaptica SRLPadova, ItalyManufacturer0000api.fda.gov
Appasamy Associates Private Limited ( Thirubhuvanai))Mannadipet Commune Puducherry, IndiaManufacturer0000api.fda.gov
Apramed Industria E Comercio De Aparelhos Medicos LtdaSAO CARLOS Sao Paulo, BrazilManufacturer0000api.fda.gov
Atago Co., Ltd.Minato-ku Tokyo, JapanManufacturer0000api.fda.gov
AurolabMADURAI Tamil Nadu, IndiaContract manufacturer, Manufacturer0000api.fda.gov
Beijing Home Vision Ai Tech Co.,ltd.Beijing, ChinaExporter to the US, Manufacturer, Specification developer0000api.fda.gov
Canon Components, Inc.KODAMA-GUN Saitama, JapanManufacturer0000api.fda.gov
Canon Inc.Kawasaki Kanagawa, JapanSpecification developer0010api.fda.gov
Carl Zeiss Meditec AG (jena)JENA Thuringia, GermanyRepackager or relabeler, Specification developer0000api.fda.gov
Carl Zeiss Vision GMBHAALEN Baden-Wurttemberg, GermanyExporter to the US, Manufacturer0000api.fda.gov
Chongqing Sunkingdom Medical Instrument Co.,ltdChongqing, ChinaManufacturer0000api.fda.gov
Chongqing Yeasn Science-Technology Co.,ltd.Chongqing, ChinaManufacturer0000api.fda.gov
Canon.IncOHTA-KU Tokyo, JapanSpecification developer0000api.fda.gov
Carl Zeiss Meditec AG (Jena)Jena Thuringia, GermanyManufacturer0010api.fda.gov
ESSILOR International Usine de la CompasserieLigny en Barrois Meuse, FranceForeign private label distributor, Specification developer0000api.fda.gov
Everview CorpGeumcheon-gu Seoul, South KoreaManufacturer0000api.fda.gov
Eyeque CorporationNewark, CA, United StatesRepackager or relabeler, Specification developer0000api.fda.gov
Eyevis Mediworks Private LimitedAhmedabad Gujarat, IndiaManufacturer0000api.fda.gov
Forus Health PVT.LTD.Bengaluru Karnataka, IndiaContract manufacturer, Manufacturer0000api.fda.gov
G2 Optic Co., LtdGUNPO-SI Gyeonggi, South KoreaManufacturer0000api.fda.gov
Gino Optical (shanghai) Co., Ltd.Shanghai, ChinaExporter to the US, Manufacturer0000api.fda.gov
Gobiquity, Inc.Nashville, TN, United StatesComplaint file establishment, Manufacturer, Remanufacturer0000api.fda.gov
Greens Surgicals Private LimitedVadodara Gujarat, IndiaManufacturer0000api.fda.gov
Heru, Inc.Miami, FL, United StatesComplaint file establishment, Manufacturer, Specification developer0000api.fda.gov
Huvitz Co., Ltd.Anyang-si Gyeonggi, South KoreaManufacturer0000api.fda.gov
Jiang Xi Big Vision Medical Technology Co.,ltdGanzhou Jiangxi, ChinaManufacturer0000api.fda.gov
Lianyungang Tiannuo Optical Instrument Co., Ltd.LIANYUNGANG Jiangsu, ChinaContract manufacturer, Repackager or relabeler0000api.fda.gov
Luneau Technology OperationsPont-de-l'Arche Eure, FranceManufacturer0000api.fda.gov
M/S Tarun EnterprisesPrayagraj, Uttar Pradesh, IndiaManufacturer0000api.fda.gov
Nidek Co., Ltd.Gamagori, Aichi, JapanSpecification developer0000api.fda.gov
Nidek Co., Ltd. Hamacho PlantGamagori, Aichi, JapanManufacturer0000api.fda.gov
Nidek IncorporatedThe Colony, TX, United StatesManufacturer0020api.fda.gov
Ningbo Flo Optical Technology Development Co., Ltd.Ningbo Zhejiang, ChinaManufacturer0000api.fda.gov
Ningbo Ming Sing Optical R&D Co., Ltd.Ningbo Zhejiang, ChinaExporter to the US, Manufacturer0000api.fda.gov
Ovitz CorporationRochester, NY, United StatesRepackager or relabeler, Specification developer0000api.fda.gov
Plenoptika Europe SluMadrid Madrid(Province), SpainManufacturer0000api.fda.gov
Plenoptika, Inc.Cambridge, MA, United StatesSpecification developer0000api.fda.gov
Plusoptix GMBHNuremberg Bavaria, GermanyManufacturer, Specification developer0000api.fda.gov
Potec Co., Ltd.Daejeon, South KoreaManufacturer0000api.fda.gov
Pursuant HealthAlpharetta, GA, United StatesSpecification developer0000api.fda.gov
Ray Vision Inc.Lake Forest, CA, United StatesRepackager or relabeler, Specification developer0000api.fda.gov
Remidio Innovative Solutions Private LimitedBengaluru Karnataka, IndiaManufacturer, Repackager or relabeler0000api.fda.gov
Rexxam.co., Ltd.Takamatsu Kagawa, JapanContract manufacturer, Manufacturer0000api.fda.gov
Right MFG. Co., Ltd.Itabashi-Ku Tokyo, JapanManufacturer0000api.fda.gov
S4optik LLCJacksonville, FL, United StatesSpecification developer0000api.fda.gov
Shanghai Huvitz Co., Ltd.Shanghai, ChinaManufacturer0000api.fda.gov
Shanghai Link Instruments Co.,ltdChangzhou City Jiangsu, ChinaManufacturer0000api.fda.gov
Shanghai Mediworks Precision Instruments Co., Ltd.Shanghai, ChinaManufacturer0000api.fda.gov
Shanghai Supore Instruments Co. Ltd.Shanghai, ChinaManufacturer0000api.fda.gov
Shenzhen Certainn Technology Co., Ltd.Shenzhen Guangdong, ChinaExporter to the US, Manufacturer0000api.fda.gov
Stereo Optical Company LLCChicago, IL, United StatesManufacturer0000api.fda.gov
Tomey CorporationNAGOYA Aichi, JapanManufacturer0000api.fda.gov
Topcon Corp.Tokyo, JapanSpecification developer0000api.fda.gov
Taiyuan North China Xinyuan Tech. Center (Co., LTD.)TAIYUAN Shaanxi, ChinaContract manufacturer, Manufacturer0000api.fda.gov
Topcon Healthcare, Inc.Oakland, NJ, United StatesManufacturer for export0000api.fda.gov
Topcon Yamagata Co., LTDYamagata-KEN, JapanContract manufacturer0000api.fda.gov
Unicos Co., Ltd.daejeon, South KoreaManufacturer0000api.fda.gov
VISIA imaging S.r.l.San Giovanni Valdarno Arezzo, ItalyManufacturer0000api.fda.gov
Visionix Ltd.Jerusalem, IsraelContract manufacturer0000api.fda.gov
View-M TECHNOLOGY CO., LTDGunpo-si Gyeonggi, South KoreaManufacturer0000api.fda.gov
Welch Allyn De Mexico, S. De R.L. De C.V.TIJUANA Baja California, MexicoContract manufacturer0000api.fda.gov
Welch Allyn, Inc.Skaneateles Falls, NY, United StatesManufacturer0000api.fda.gov
Wuxi Zontai Int'l Corporation Ltd.WUXI Jiangsu, ChinaContract manufacturer, Exporter to the US, Manufacturer0000api.fda.gov

Updated December 19, 2003. Read from openFDA bulk downloads (device registration and listing, 510(k), PMA, recall and enforcement files). CC0 1.0, public domain (openFDA terms of service). The files are joined on FDA identifiers: the 510(k) and PMA numbers a registration lists, and the recalling firm's FEI for recalls. Recall class comes from the FDA enforcement report. The FDA states that openFDA data is unvalidated and is not for decisions about medical care. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.