Dear aspirant !

Hope you are doing great ! I am very sorry to say but you are not eligible for nda ,your eyesights are too weak , you can't join defence force .

Medical standard of eyesight for NDA is as follows-

A candidate should be able to read in a distant vision chart 6/6 in better eye and 6/9 in worse eye with or without glasses . Myopia should not be more than 2.5 D and hypermetropia not more than 3.5 D including Astigmatism.

Don't be demotivated ,life is full of opportunities , also many other options are there ,try there .

Hope it helps you !

Thanks