PURPOSE: To identify vitreopapillary tractional forces as a possible c
ause of optic nerve head elevation. METHODS: Case reports. Two patient
s aged 64 and 84 years underwent detailed ocular examination and B-sca
n ultrasonography, RESULTS: Both patients had a unilateral elevated op
tic nerve head with normal color vision, normal pupillary responses, a
nd full kinetic perimetry, Biomicroscopic and B-scan ultrasonographic
evaluation confirmed the presence of vitreopapillary traction. CONCLUS
IONS: Vitreopapillary traction can cause unilateral optic nerve head e
levation. The posterior hyaloid should be evaluated in patients with o
ptic nerve head elevation. (C) 1998 by Elsevier Science Inc. All right
s reserved.