This animation compares the eye’s response to light to the ERG waveform generated by the RETeval
As light travels through the eye it triggers an electrical response in the photoreceptors of the retina. This initial electrical response is represented in the ERG waveform as the A wave.
The ERG waveform is represented on this chart with the X axis representing time of response (implicit time) in milliseconds. The Y axis represents strength of response (amplitude) in micro-volts
The electrical signal then transfers from the photoreceptors to the bipolar cells which is represented in the ERG waveform as the B wave.
The electrical signal then transfers from the bipolar cells to the retinal ganglion which is represented as the Photopic Negative Response or PhNR.
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Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Substance Tables:
The table below lists substances which may be contained within LKC’s RETeval and RETevet products. Substances listed as Type 1 are within permissible levels in one or more of LKC’s products. Substances listed as Type 2 are used in the production of some components used in LKC products and may be present at trace levels, but are typically destroyed during processing.
RETeval and RETevet Devices
| Substance | CAS # | Type | Listed as causing: |
| Nickel | 7440-02-0 | 1 | Cancer |
| Acrylonitrile | 107-13-1 | 2 | |
| Ethylbenzine | 100-41-4 | 2 | |
| Crystaline Silica | 14808-60-7 | 1 | |
| Lead | 7439-92-1 | 1 | Cancer Developmental Toxicity Male Reproductive Toxicity Female Reproductive Toxicity |
| Methylene Chloride | 75-09-2 | 2 | Cancer Female Reproductive Toxicity |
| Bisphenol A | 80-05-7 | 2 | |
| N-Hexane | 110-54-3 | 2 | Male Reproductive Toxicity |