Ans.: The surgery of squint usually involves treating the muscles and depending on the kind of squint one, two or three muscles. In adulthood, the prognosis depends on the extent of the squint and the number of muscles involved. This involves a detailed check up after which the doctor (preferably a squint specialist) will guide with what is best for your eyes.
Also, please note that vision improvement may not happen as this process gets established while growing up.
Ans.: This needs to be evaluated at the earliest by a squint specialist. Doing any correction before 9 years is most beneficial in prognosis with fewer chances of failures. Hence, recommended that one does any correction ASAP. Also, there is no laser available that corrects this as the squint issue comes from needing to treat the muscles of the eye which involves surgery correcting these muscles.
Ans.: You definitely need to make sure that a squint specialist is seeing your child as this also affects learning. The earlier the issue is addressed, the better the prognosis. However, without any examination, it will be difficult for me to guide you specifically. You may visit us in Mumbai or any squint specialist in your city.
Ans.: Squints are of different kinds. The surgery may involve one, two or three muscles. In adulthood when your eye muscles have already fully developed the chances of the squint recurrence is high as the natural effect is that your muscles resist the change.
Regarding vision, one cannot comment unless examined, but your treating squint specialist would be able to give you a general idea of your post surgical visual expectations.
There is no rule as to when this recurrence can happen and in whom.