Evaluation of full-field electroretinography combined with fundus photography on the preoperative visual function of retinal detachment
Objective To investigate the significance of full-field electroretinography(F-ERG)combined with ultra-wide-angle scanning laser fundus imaging for the objective evaluation of visual function in retinal detachment(RD)before surgery.Methods A prospective case series study.F-ERG and fundus photography were performed in 16 eyes of 16 patients with RD,and ERG-jet electrodes were used to assess the overall retinal function under bright-adapted and dark-adapted conditions and to correlate it with the extent of retinal detachment.Results The area of retinal detachment was negatively correlated with the a-wave of the F-ERG dark-adapted 3.0 response,the a-wave of the dark-adapted 10.0 re-sponse and the b-wave of the dark-adapted 10.0 response(P<0.05),and was significantly negatively correlated with the OS2 of the dark-adapted 3.0 response,the N1-P1 index of the bright-adapted flicker response(P<0.05),and was signifi-cantly positively correlated with the P2ms of the dark-adapted 3.0 response(P<0.05),there was no significant correlation between F-ERG and disease duration.Conclusions F-ERG can objectively and quantitatively evaluate the preoperative visual function of RD and correlate with the extent of retinal detachment,and both tests can be used as objective functional indicators for preoperative assessment of patients'ocular status.