Clinical Trials

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Leading the Wave with our Involvement in Gene Therapy


Diagnosys has a rich history of being involved in all phases of clinical research. Our preclinical CELERIS system is currently being used to study genetics in countless labs worldwide.

Our DiagnosysFST was used as an endpoint for LUXTURNA, the first FDA approved gene therapy and continues to be an endpoint for the efficacy of this treatment.




We continue to support myriad sight-saving efforts.


Clinical Trial Services


Diagnosys has over 35 years of experience working with pharmaceutical, biotech, and CRO companies. Our services include study setup assistance, training, and data review. These services enable sites to gather consistent, quality data across multiple locations worldwide. 

Clinical Trials

Experience supporting over 100 clinical trials!



ERG can phenotype Inherited Retinal Diseases (IRDs).


When the ERG goes flat, FST quantifies residual function.




DiagnosysFST,  Full-field Stimulus Threshold, quantifies the lowest levels of visual perception.
This psychophysical method involves a 2-button response box, wherein patients affirmatively respond Yes or No to seeing a flash.
This method continues to evolve as treatments advance.


A high quality FST result


Quantify luminance thresholds for low vision patients.



EER: Electrically Evoked Response



An EER electrically stimulates the visual system. This method of stimulation bypasses the photoreceptors, directly stimulating post-photoreceptor pathways. Diagnosys’s patented EER stimulates and measures an electrical response.
This method is not currently FDA approved. 



EER Electrically stimulated Photoreceptors


EER is being used on patients with no light perception to screen candidates for regenerative therapies.



  • 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