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Electrooculogram (EOG)

Electrooculogram (EOG) An electrooculogram (EOG) measures the resting potential of the retinal pigmented epithelium (RPE) in response to dark and...Read More

Electrodes for Clinical Practice

Electrodes for the Clinical Practice   Key Topics  Active electrodes record the signal from the stimulated region, reference electrodes record...Read More

Pediatric Conditions

Selected peer reviewed published research on Pediatric Conditions: There are several pediatric disorders that may cause vision loss or blindness...Read More

Inherited Retinal Diseases (IRD)

Selected peer reviewed published research on Inherited Retinal Diseases: Inherited Retinal Diseases (IRDs) are caused by different gene mutations that...Read More

Neurological Conditions

Selected peer reviewed published research on Neurological Conditions: There are several neurological conditions that may affect the visual pathway from...Read More

Age-Related Macular Degeneration (AMD)

Summary of select, peer reviewed published research on age related macular degeneration: Age-related macular degeneration (AMD) is a common eye...Read More

Diabetic Retinopathy

Summary of select, peer reviewed published research on diabetic retinopathy: Within the first two decades following the diagnosis of diabetes,...Read More


Summary of select, peer reviewed published research on glaucoma: Glaucoma is a group of conditions characterized by cupping of the...Read More

Retinal Toxicity

Summary of select, peer reviewed published research on retinal toxicity: Hydroxychloroquine (HCQ) and its predecessor, chloroquine (CQ) are antimalarial drugs...Read More


  • I have used Diagnosys electrophysiology systems for clinical testing and research for nearly fifteen years. The systems are reliable, easy to use and protocols readily modified to answer research questions. The few times I have had problems with the equipment, Diagnosys has quickly responded and fixed the problem.

    Ron Hansen

  • Diagnosys LLC not only provides high quality testing equipment, but also provides excellent customer support services. All employees are knowledgeable in the field of visual electrophysiology and are able to help with any questions or issues you may have.

    Julie Racine

  • As a clinical neurophysiologist in a busy pediatric clinic, I wholeheartedly believe that the equipment made available to us by Diagnosys LLC allows for the testing necessary to aid in clinical diagnostics and research. I have always felt that this family run company has been by my side each and every step of the way, despite being located in another country.

    Dr. Allison Dorfman

  • Celeris is the Luxury Vehicle of Electrophysiology! I love Celeris for the vision science field because it grants all investigators access to a wide variety of electrophysiological tests without requiring in depth expertise of the theory of electrophysiology. It's wonderfully simple and easy to operate.

    Barbara A. Mysona