i agree with dr nupur.

my dear friend,-1.75 and -2.25 DS is already less than -2.50 ,so according to your claim of having myopia less than -2.50 is fulfilling your criteria.so no worries now.,go ahead and persue profession of your choice. but please make sure of the requirement standards of NDA. yes ,healthy diet is always helpful ,but you will have to keep using your glasses,otherwise your power would increase.

Hello I am sorry but there is no medicine or exercise to get rid of glasses or to reduce power of glasses If limit is 2.50then you are safe