"On" response dysfunction in multifocal posterior pigment epitheliopathy.
作者信息
Imaizumi Masamoto, Matsumoto Celso Soiti, Kimoto Ken-Ichi, Furushima Masatoshi, Nakatsuka Kazuo
机构信息
Department of Ophthalmology, Oita Medical University, Hasama-machi, Oita-ken, Japan.
出版信息
Retina. 2002 Feb;22(1):33-6. doi: 10.1097/00006982-200202000-00006.
PURPOSE
To determine the electroretinographic properties of one patient with multifocal posterior pigment epitheliopathy.
METHODS
Rod and cone electroretinograms (ERGs) and photopic ERGs elicited by long-duration stimuli were studied in a patient with multifocal posterior pigment epitheliopathy.
RESULTS
The amplitudes of both the rod and cone ERGs were significantly reduced. Photopic ERGs elicited by long-duration stimuli demonstrated that the b-wave ("on" response) was abolished but the d-wave ("off" response) was reduced by only amplitude.
CONCLUSION
The ERG findings in multifocal posterior pigment epitheliopathy indicate that there is dysfunction not only of the photoreceptors but also in the signal transmission specific for the "on" pathway.
Zotero 插件