Please get your refraction done and start using specs as advised. But if the difference is more than 3D then you will have to use contact lenses And if there is no satisfactory improvement then. Nothing can be done and you will have to bear with it.

Many a time you may be worn with one eye having a spectacle number which one may not realise.. that eye becomes lazy over time. You may have realised one eye has poor vision now as you have probably not had an eye exam before .. get an eye check up done now, if it is a lazy eye, ignore it and continue living life to the fullest! Maskatieyeclinic Opposite Charni Road station east, Mumbai

Hello This blurred vision in left eye could be due to refractive error which may be easily corrected Having said that it is very difficult to comment without examining you Kindly consult local ophthalmologist and get proper eye examination done