Founded as LKC Systems in 1975, LKC Technologies develops visual electrophysiology equipment that measures retinal and visual-pathway function for clinical care and research. The Germantown company is best known for its RETeval handheld ERG/VEP device, introduced in 2013 and installed in more than 3,000 sites worldwide, along with its patented non-invasive Sensor Strip electrodes. LKC is an ISO 13485:2016 and MDSAP-certified, FDA-registered medical-device manufacturer.
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VectorVision Ocular Health (DBA: VectorVision)Founded by vision scientist David W. Evans, Ph.D., VectorVision makes standardized vision-testing instruments for measuring visual function in eye-care practices and clinical research. Based in Greenville, Ohio, the company has spent 30 years developing patented systems such as the CSV-1000, CSV-2000 and ESV-3000, which automatically control testing luminance for consistent results. Its equipment is used in more than 60 countries, 5,000 eye-care clinics and more than 50 FDA clinical trials.GREENVILLE, OH
Reichert, IncWith a 185-year history in Buffalo, Reichert designs and manufactures diagnostic instruments that help eye-care professionals test vision and identify conditions such as glaucoma. Now a business of AMETEK, the company continues that tradition from its 83,000-square-foot Depew facility, where it makes technologies including the Phoroptor and Tono-Pen. Reichert’s medical-device operation is ISO 13485:2016 and MDSAP certified and distributes through more than 150 distributors worldwide.DEPEW, NY
Diopsys, IncDiopsys, Inc. develops the NOVA™ Vision Testing System, an in-office electrophysiology platform that measures functional activity across the visual and neuro-visual pathways. Based in Middletown, Pennsylvania, the company’s systems provide objective ERG and VEP testing to help clinicians detect disease earlier, monitor retinal function, and inform treatment decisions.MIDDLETOWN, PA
Keeler LtdWith more than a century of optical expertise, Keeler Ltd designs and manufactures ophthalmic instruments for eye-care professionals, including binocular indirect ophthalmoscopes and diagnostic equipment. Founded in 1917 by Charles D. Keeler, the Windsor-based company still operates its main UK manufacturing facility while also assembling selected instruments and servicing North American customers locally in Pennsylvania. Its medical devices are certified to ISO 13485 and ISO 14001 standards, alongside MDSAP, UKCA and CE requirements.MALVERN, PA