Objective: To explore significance of multifocal ERG(MERG) in evaluation visual function before and after retinal detachment(RD) operation.

• 目的:探讨多焦视网膜电图(multifocal electroretinography,MERG)对视网膜脱离(retina detachment,RD)术前、术后的视功能客观评价意义。