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Konan Mission and History

We are passionate about providing innovation and excellence in our products and services

we want to treat our customers the way we want be treated ourselves

The Beginning of Konan Medical


Konan Medical USA’s parent company, Konan Medical Inc. (Japan), was established in 1947 in Hyogo Japan after WWII by a group of camera enthusiasts.  Konan has been in the specular microscope business since 1979 and holds over 1,600 patents including many remarkable new products such as the balloon camera (meteorology) 1955, radar camera 1956, electrofax copy machine 1960, the first disposable camera 1963, and the specular microscope 1979.

As the market leader in specular microscopy, Konan has a significant majority share of the healthy and growing market for devices used to image and assess the corneal endothelium for clinical and donor corneas.  Konan (Japan) continues to grow under the leadership of CEO Tetsuji Ikegami.

Konan Medical USA Inc. Established


Konan Medical USA (“Konan Medical”) established as California C Corp by Konan, Inc. ( Japan) to manage sales, marketing, and customer service / support in North America for Konan (Japan) products under the leadership of General Manager Setsuko Susan Oak.


Charles Wm. Stewart as CEO and Dale Sadlik as COO join the Konan team and begin developing Konan Medical’s quality system for ISO certification. Konan Medical acquires ONTest Corporation including its key patents and in process intellectual properties on pupil assessed neuro-diagnostics. Konan’s RAPDx product is a result of more than a decade of research and development. Konan Medical’s role expands all of the Americas for Konan (Japan) products.


Konan Medical’s role expands to include Western Europe for Konan (Japan) products.  Konan Clinical Services launched to provide specialized products and services to ophthalmic manufacturers of implantable devices and pharmaceutical agents.


RAPDx commercial sales are initiated in the Americas, Europe and Asia.


Global rights to the ColorDx products from renowned color vision expert Dr. Terrace Waggoner are added to Konan Medical family of diagnostic products and include color vision testing products in print, computer, tablet, and web-served applications. .


Konan Medical obtains rights in late 2014 to the EvokeDx visual electrophysiology product from Professor Vance Zemon, and Dr. George Hu formerly marketed as Neucodia.


EvokeDx commercial sales initiated in USA.  CellChek SL is launched as the all-in-one replacement for the very successful CellChek XL specular microscope series.  CellChek D+ launched at AAO for donor cornea analytics.  US Navy adds ColorDx application as one of only three electronic tests permitted for color vision assessment of personnel.


With a focus in specialized diagnostic devices, Konan’s flagship specular microscopes are recognized eye care practitioners, regulatory groups, professional reading centers, and clinical trial experts as the gold standard for endothelial cell density analysis. Additional diagnostics are expanding Konan’s specialty into color vision deficiencies (also described questionably as color blindness), high definition pupillography, and visual acuity + ocular performance.


Konan Medical owns or represents well recognized ophthalmic brands including:

CellChek®  |  Center Method™  |  RAPDx®  |  ColorDx®  |   EvokeDx®  |  icVEP™

EyeKinetix® will have visibility in 2016.


Market Position

Konan Medical USA, Inc. has a global sales and distribution channel comprised of direct sales, selected sales representatives, and distributors with extensive eye care experience. Today there are over 20,000 Konan systems and products in use in 60 countries worldwide and all 50 states in the USA using Konan specialized diagnostic products. Konan’s clinical trials services program counts virtually every FDA registered manufacturer of ophthalmic implantable and pharmaceuticals as customers. Konan continues to earn its predominant position in the marketplace with core strengths in clinical evidence, web-enabled customer support, expert service, and leading technologies. Konan additionally is the market leader in the donor cornea tissue / eye bank specular microscopy segment.

Business Development & Investment

Konan Medical USA, Inc. actively seeks promising new technologies & products to complement its existing product line and leverage the capabilities of its extensive distribution network. To explore opportunities for cooperation, please contact Charles Wm. Stewart, OD, or Dale Sadlik.