NFO applicants have no min for their uncorrected vision.
Au contraire, mon frère. There are indeed limits for NFO applicants, not for winged guys though.
Refractive Limits: Manifest refraction must not exceed +/-8.00 diopters in any meridian (sum of sphere and cylinder) with astigmatism no greater than -3.00 diopters. Refraction must be recorded in minus cylinder format. Must have no more than 3.50 diopters of anisometropia in any meridian.