Touche, monsieur.
One did, and I very certain the other 3 did.
FWIW, the one captain lost his eye, and spent a minimum of 6 months learning to work with monocular vision. After that period, he went through sim training, and then was certified by an FAA-designated examiner. It's been determined that binocular vision is not critical from the cockpit of airliners. IIRC, the field of regard, distances, etc.... are such that the difference is in the noise level.
This was a long time ago, so things may have changed. But generally, those changes involve getting less restrictive.