Amish aren't against medical technology. If a child needs surgery — surgery it is. With X-ray, anesthesia, antibiotics. No argument.
Accept
X-ray, MRI, surgery, anesthesia, antibiotics, pacemakers, glasses, hearing aids, dentures, crutches.
Reject
Cosmetic surgery (vanity). Gene therapy (debatable — 'altering God's creation'). Electronic implants with Bluetooth (worldly connection).
Paradox
Amish with pacemaker rides buggy without headlights. Electronics in his heart — okay. Electronics in his lamp — not okay. Logic: heart = life. Lamp = comfort. Life > comfort.