minecraft-assets/assets/minecraft/advancements/story/follow_ender_eye.json

{
    "display": {
        "icon": "minecraft:ender_eye",
        "title": "Follow an Ender Eye"
    },
    "parent": "minecraft:story/obtain_blaze_rod",
    "criteria": {
        "near_stronghold": {
            "trigger": "minecraft:used_ender_eye",
            "conditions": {
                "distance": {"max": 64}
            }
        }
    }
}