I don't know about which examination you are talking about. Now if you are going for NDA then the eye criteria is provided below:

correctable to 6/6 only for Hypermetropia

Colour vision CPI Hypermetropia: +2.0 D Sph Manifest Myopia: Nil Retinoscopic Myopia

: 0.5 in any Meridian permitted Astigmatism : + 0.75 D Cyl (within + 2.0 D.Max)

As your glass corrected vision is 6/6 then you are eligible for the NDA examination.

To know more about NDA visit the link below:

https://competition.careers360.com/exams/nda

I hope this answer helps. All the very best for your future endeavors!