Prabhupada told him not to remove the patch

Kurma Dasa: Srila Prabhupada was accustomed to travelling with two assistants, a secretary and a servant. Until the last leg of his European tour, Nitai had been Prabhupada’s secretary. But he had fallen ill, and so Prabhupada had chosen a replacement, Vaikunthanatha. Today he arrived in Melbourne. 
Vaikunthanatha, delayed due to a car accident in Frankfurt, entered Prabhupada’s room and offered his obeisances. Prabhupada appeared very concerned when he noticed that Vaikunthanatha wore a patch over one eye. Vaikunthanatha told him of the accident and offered to show Prabhupada the scars, but Prabhupada told him not to remove the patch.
Srila Prabhupada immediately put Vaikunthanatha to work—typing the daily dictaphone tapes of his latest work-in-progress—the Sri Caitanya-caritamrita.