Localized Retinal Nerve Fiber Layer Defect and Viual Field Abnormalitie by Humphrey Matrix Frequency Doubling Technology Perimetry

Purpoe To invetigate the ability of frequency doubling technology (FDT) perimetry to identify eye with a localized retinal nerve fiber layer (RNFL) defect and normal Humphrey C30-2 ITA-tandard viual field (HVF). Deign Retropective cae-control tudy. Method Fifty-four eye were divided into two group, an abnormal (n = 29) and a normal (n = 25) FDT perimetry group. Approximation of the RNFL defect to the macula (angle α) and width of the defect (angle β) were meaured by RNFL photograph and compared between two group. Reult Angle α and angle β were ignificantly different between two group (P < .001 by Mann-Whitney U tet, repectively). A multivariate logitic regreion analyi demontrated that only angle β wa ignificantly aociated with FDT perimetry abnormalitie (P = .002). Concluion Only 53.7% of the eye with a localized RNFL defect and normal HVF had viual field abnormalitie identified by FDT perimetry. Width of the RNFL defect wa more trongly aociated with FDT perimetry abnormalitie than location of the defect.