hi chetana sometimes it is very common for children to have power in early childhood,i suggest you to go for 2nd opinion.u can get more accurate power when they do cyloplegic test for your son,it means the doctor will instill eye drops to let the accomodating muscles to rest then they will test again ur son eyes.doc will get the power more accurate when they dilate ur son eyes and check the power.not evryone will suitable for refractive surgery moreover as he grows the power and the length of eyeball will change.