Hello dear

You can apply for ias exam in any case but the selection will be done only after you clear all the stages and then medical and fitness test  And

As per the standard eligibility if you have a 6/6 or 6/9 vision with or without spectacles then definitely you can join.

CL and refractive surgery like LASIK, ICL, IOL, etc. are also allowed those who have myopia with macular degenerative changes will be declared unfit for service in the IAS. People with a squint in the eyes are fit for service..

so hope you get it.

good luck