Eyes with shallow anterior chamber or media opacity affecting the fundus imaging, low quality OCT images, fundus abnormalities such as glaucoma, diabetic retinopathy, retinal detachment, macular degeneration, retinitis pigmentosa, retinal vein occlusion, inferior staphyloma associated with tilted disc syndrome, scleral ridge temporal to the optic disc, peripapillary intrachoroidal cavitation or diffuse chorioretinal atrophy were also excluded.
Source: wiktionary