How Can Kidney Disorder Be Treated?

Doubting of kidney stone,when I did a USG whole abdomen scan,i came to know that my right kidney is grossly contracted measuring 5.7 cm-2.9 cm.with the radiologist noting it as corticomedullary differentiation is lost & chronic renal parenchymal disease.the radiologist guess that may be I am having this contracted kidney from my childhood.i am 39 years now,but till date I have not had any serious health complications.just now that I am diagnosed with stones in my left kidney which has made its way to the distal ureter.is there any remedy for my right kidney disorder or else will I be able to continue with the left functional kidney as I have been for so many years without.complications in future.the left kidney size is 14.5 cm ×8.4.cm.