Stromal opacity in cornea. In my case?

Doctor, My age is 14. I was suffered from StromaL keratitis which result in stromal opacity. Doctor prescribed me some drops for curing keratitis and he told me that the opacity will not go away probably. He also told me to use "Hylo Gel" 5 times per day. I visited him after 1 year and 2-3 months, he told me that the opacity is faint now and it may not go completely but majority of it will go away. Doctor told me that i'm having some vision problem for the opacity and this is normal. Now: 1) Is it a good sign that the opacity is faint? 2) If majority of the opacity is go away (but not completely go away), will it reduce my vision problem due to opacity? 3) Why my doctor hasn't recommended surgery in my case? Please answer, doctor.