Peripapillary Atrophy: 2. Its Correlations with Glaucomatous Optic Nerve Damage.

Lee, Dong Yeon; Uhm, Ki Bang; Hong, Chul

Original Article

Journal of the Korean Ophthalmological Society 1998;39(11):2731-2741.
Published online November 1, 1998.

Peripapillary Atrophy: 2. Its Correlations with Glaucomatous Optic Nerve Damage.

Dong Yeon Lee, Ki Bang Uhm, Chul Hong

Department of Ophthalmology, College of Medicine, Hanyang University.

유두주위위축과 녹내장성 시신경손상과의 상관관계

이동연(Dong Yeong Lee),엄기방(Ki Bang Uhm),홍철(Chul Hong)

Abstract

This study was undertaken to evaluate how closely peripapillary atrophy(PPA) is related to structual and functional optic nerve damage in primary open-angle glaucoma. Magnification-corrected morphometry of photographs using computer graphic program and automated static threshold perimetry were performed on 234 eyes of 141 patients with primary open-angle glaucoma and 139 eyes of 86 normal subjects(control). For the data analysis, only one eye of each patient was randomly selected. Both groups did not differ significantly in age, refractive error and disc area. PPA differentiated into two different zone(alpha and beta). The area of zone alpha, zone beta and the total PPA enlarged significantly)P=0.0001) with a decreasing rim/disc area ratio(r=0.36, r=0.46, r=0.50, respectively), rim area(r=-0.27, r=-0.44, r=-0.43, respectively) and mean deviation(r=-0.30, r=-0.34, r=-0.39, respectively). They enlarged significantly(P=0.0001) with an increasing vertical(r=0.35, r=0.42, r=0.46, respectively) and horizontal cup to disc ratio(r=0.31, r=0.37, r=0.41, respectively) and cup area(r=0.36, r=0.41, r=0.46, respectively). Concerning peripapillary parameters, the correlation coefficients were generally lowest for zone beta and the highest for total PPA. The peripapillary atrophy showed a spatial relation to neuroretinal rim loss. These results indicate that enlargement of PPA is related to the severity of the glaucomatous optic nerve damage and visual field defects.

Key Words: Optic disc;Peripapillary atrophy;Primary open-angle glaucoma;Zone alpha;Zone beta