This thesis describes the electrical response of normal and diseased
human eyes to an intense light stimulus. The apparatus and technique has
been developed from a standard clinical procudure known as electroretinography
The method to be described enables one to observe the response in more detail
than has been hitherto possible Two recently discovered components of the
electroretinogram are clearly shown using this technique. One of these
components, the Early Receptor Potential, has not been previously described
in the human eye when the work was begun.
The technique was applied to a series of normal subjects and subsequently
to a series of patients with a variety of eye diseases.