Topographic Correlation between β-Zone Parapapillary Atrophy and Retinal Nerve Fiber Layer Defect
Objective:
To investigate whether a topographic correlation exists between β-zone parapapillary atrophy (PPA) and retinal nerve fiber layer (RNFL) defect. The location and extent of the β-zone were examined.
Design:
Retrospective, cross-sectional study.
Participants:
One hundred twenty-eight eyes from 128 consecutive patients with primary open-angle glaucoma (POAG) and a single localized RNFL defect were included.
Methods:
Digital optic disc photographs of the enrolled eyes were reviewed and eyes with β-zone PPA were identified. The topographic parameters of β-zone PPA and RNFL defect were measured on optic disc photographs and digital (Read more...)