[Effects of electroacupuncture at different acupoints on FVEP in the rabbit with separated monocular optic nerve].
OBJECTIVE
To study the effect of acupuncture and moxibustion on the visual system and the mechanism.


METHODS
Twenty-four rabbits were randomly divided into a "Hegu" (Ll 4) group and a "Taixi" (KI 3) group, 12 rabbits in each group. The rabbit model with separated monocular optic nerve was developed, cutting the link between the retina with the center, but do not injure the blood circulation in the retina. The effect of electroacupuncture on flicker vision evoked potential (FVEP) was investigated.


RESULTS
When the optic nerve was cut off, the distal fibers of descending regulating the retina were cut off, the FVEP of the operative eye extinguished. Elctroacupuncture at "Hegu" (LI 4) and "Taixi" (KI 3) at various stages have stronger inhibiting action on the latent time and amplitudes of N1, P1, N2 of FVEP, marked by prolongation of the latent time of peak, and obvious decrease of the amplitude. And this inhibiting action has difference of acupoints.


CONCLUSIONS
The distal fiber plays a certain role in the process of electroacupuncture influencing flicker electroretinogram (FERG) and FVEP, but the effect of acupuncture on FERG is induced through the distal fibers to influence the retina in a limited extent, but not through the central descending inhibition.
Zhou
Hua-Xiang
HX
Laboratory of Ophthalmology, Chengdu University of TCM, Sichuan 610075, China.
Liu
Wen-Zhou
WZ
Duan
Jun-Guo
JG
Jiang
Wen-Shan
WS
Chen
Xiao-Li
XL
D015669:Acupuncture Points; D015670:Acupuncture Therapy; D000818:Animals; D015671:Electroacupuncture; D005074:Evoked Potentials, Visual; D006801:Humans; D009900:Optic Nerve; D011817:Rabbits