preferred_name: Diffuse thinning, focal narrowing, or notching of the optic disc rim, especially at the inferior or superior poles
preferred_name_lc: diffuse thinning, focal narrowing, or notching of the optic disc rim, especially at the inferior or superior poles
label: Diffuse thinning, focal narrowing, or notching of the optic disc rim, especially at the inferior or superior poles
label_lc: diffuse thinning, focal narrowing, or notching of the optic disc rim, especially at the inferior or superior poles