Electroretinographic monitoring of retinal function during eye surgery
Y. Miyake, K. Yagasaki and M. Horiguchi
Department of Ophthalmology, Nagoya, University School of Medicine, Japan.
We performed a pilot study of electroretinographic monitoring of retinal
function during eye surgery performed with local anesthesia. A contact lens
with a built-in light-emitting diode was sterilized and used as both a
stimulus source and a recording electrode for 30-Hz flicker
electroretinograms. Each recording required 7 seconds, during which the
operating light (but not the room light) was switched off.
Electroretinograms recorded during surgery on 10 patients with minimal
retinal abnormality were evaluated for the effects of light adaptation
caused by regular exposure to an operating light source or operating
microscope. The fluctuations of the amplitude and peak time were small,
indicating that this technique can be used to monitor retinal function
during eye surgery. Some results during retinal and vitreous surgeries are
shown.
