Fundus photography
enlargement of vertical cup-to-disc, hemorrhage, Optic, Nonmyd
DILATION, HEMORRHAGE, ENLARGEMENT
Images centered on the disc and macula will be taken for each eye using fundus cameras (Nonmyd WX3D, KOWA, Japan; TRCNW400, TOPCON, Japan) after dilation.Optic disc progression will be assessed by comparing the stereo photographs taken at baseline and the stereo photographs obtained at the follow-up examination and is defined by any of the following: (1) enlargement of vertical cup-to-disc ratio (VCDR), (2) neuroretinal rim notching (incidence or enlargement), (3) wedge-shaped RNFL defects (incidence or enlargement), or (4) disc hemorrhage, if not related to myopic changes.