Does it matter what your eye power is, if your vision can be corrected to 6/6 (20/20) vision?
1$\begingroup$ Related. You might also like to mention what class of medical you're asking about (if you know), because the requirements can be different for different classes. $\endgroup$– PondlifeFeb 19, 2018 at 13:11
The DGCA's relevant requirements adheres and refers to ICAO Annex 1 (see pages 3 and 4). Here's the relevant text from Annex 1:
22.214.171.124 Distant visual acuity with or without correction shall be 6/9 or better in each eye separately, and binocular visual acuity shall be 6/6 or better. No limits apply to uncorrected visual acuity.
126.96.36.199 Distant visual acuity with or without correction shall be 6/12 or better in each eye separately, and binocular visual acuity shall be 6/9 or better. No limits apply to uncorrected visual acuity.
The above is for the requested uncorrected visual acuity, but it is not the full text, e.g., if the correction is surgical, there is more fine print to read.
Generally in India 6/6 and corrected vision is preferable for eye vision in basic criteria in physical examination, I m not sure if vision is not correct closely they will grant the permission.
But might be link will help you: http://dgca.nic.in/aic/AIC13_2008.pdf