[Establishment of the sweep pattern visual evoked potential system and its application].
OBJECTIVE
To establish an acuity inspection system with sweep pattern visual evoked potential (SPVEP) so as to provide the evidence for acuity objective inspection.


METHODS
Based on the domestic sweep pattern visual evoked apparatus, sections of hardware were reformed and a manipulation program possessing false random control software was compiled. The SPVEP acuity for the 78 eyes (10 normal eyes, 10 ametropia eyes, 48 prevalence eyes, 10 false ametropia eyes) was estimated with our acuity objective inspection system, then compared with the E visual acuity of those eyes by statistical procedure.


RESULTS
There was a close correlation between the SPVEP acuity and E visual acuity for 78 eyes (r2 = 0.946).


CONCLUSIONS
SPVEP acuity inspection system can be applied to estimate objective acuity.
Li
Xiao-Peng
XP
Shanghai Huayi Forensic Judical Appraisal Institute, Shanghai 200050.
Zhang
Chen
C
Hu
Jun
J
Wu
Jun
J
Zhu
Yan-Miao
YM
Li
Hai-Sheng
HS
D005074:Evoked Potentials, Visual / Q000502:physiology*; D005554:Forensic Medicine / Q000379:methods; D006801:Humans; D014787:Vision Tests / Q000295:instrumentation* / Q000379:methods*; D014792:Visual Acuity / Q000502:physiology*