Software Version V6.66 Release
Software Version V6.66 released on June 1, 2023 New Features and Bug Fixes: ColorFlash Fixed a bug introduced by 64.15 which affected ColorFlash high-intensity flicker To request our latest software version, please fill out the form below:
Read MoreEER Patent
EER Patent Diagnosys is proud to announce that the USPTO has patented another one of our inventions! Our Electrically Evoked Response (EER) Stimulator/Amplifier Combination earned US patent 11,497,911 on Nov 15th 2022. The EER apparatus stimulates and records electrical responses at the same time, utilizing a new design which both sends a current to the […]
Read MoreChiasmal Coefficient
Chiasmal Coefficient Calculator with a 3-Channel VEP The Chiasmal Calculator is a tool that can calculate optic nerve misrouting with the use of a 3-channel Pattern VEP or Flash VEP. Using the raw data of the response, the tool calculates a coefficient and plots a graph. Both of these outputs can be used to draw […]
Read MoreSoftware Version V6.64.15 Release
Software Version V6.64.15 released on December 6, 2022 New Features and Bug Fixes: Ability to support new LI-LCD This software version now supports LI-LCD luminance artifact rejection ColorDome Calibration Enhanced ColorDome’s internal calibration check to show red, yellow, and green calibration status Fixed eXporter Software Bug eXporter now always assigns tests to the correct […]
Read MoreS-Cone ERG
S-Cone ERG The short-wavelength cone (S-Cone) protocol tests the blue-light receptor retinal pathway. This test can be useful for diagnosing inherited retinal disorders and distinguishing between rod monochromacy and S-cone monochromacy. The S-Cone protocol can be run on a ColorDome stimulator that delivers flashes of blue light on an amber-colored background. The background light serves […]
Read MorePhotopic Negative ERG (PhNR)
Photopic Negative ERG (PhNR) A Photopic Negative Response (PhNR) is a test of generalized retinal ganglion cell health and function. Reduced PhNR amplitudes might be indicators for: glaucoma, optic atrophy, central retinal artery occlusion, ischemic optic neuropathy, diabetic retinopathy, or idiopathic intracranial hypertension. This protocol uses a low intensity red flash on a rod-saturating blue […]
Read MoreDark-adapted red flash ERG
DA Red Flash ERG The dark-adapted red flash is an extension of the standard full-field ERG. It incorporates a dim red flash of light which elicits an x-wave that illuminates further detail of the rod pathway physiology. This protocol can be used in the diagnosis of achromatopsia (rod monochromacy), cone dystrophy, and other cone system […]
Read MoreOn-Off ERG
On-Off ERG The On-Off ERG is a separate protocol used to investigate post-phototransduction or post-receptor dysfunction. This protocol elicits a response from the bipolar and inter-retinal cells. ISCEV indicates that his protocol may further reveal details about: CSNB, melanoma-associated retinopathy, and some forms of autoimmune retinopathy. This protocol may also be useful in X-linked retinoschisis, […]
Read MorePattern ERG (pERG)
Pattern ERG (PERG) The Pattern ERG (pERG) produces a macular retinal ganglion cell response. When done as a follow-up to an abnormal pattern VEP, the pERG can elucidate whether the abnormality is caused by retinal or optic nerve dysfunction. This test may also assist in diagnosing glaucoma, optic neuropathies, and primary ganglion cell diseases. A […]
Read MoreReferences
Diagnosys equipment is capable of performing the following protocols: Full field ERG (ffERG), Multifocal ERG (mfERG), Pattern ERG (PERG), Photopic Negative Response (PhNR), Pattern VEP, Flash VEP, Stepwise Sweep VEP, Electro-oculogram (EOG), and Electrically Evoked Response (EER) tests. The resulting size, shape, and delay of various components of the response waveforms are indicators evaluated by […]
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