I would get a second opinion in this regard to clarify. As you said, Duane's is much more common than a congenital 6th nerve palsy and it makes a difference as to which surgery should be done in order to avoid worsening the retraction that comes with Duane's. You have to be sure prior to proceeding with surgery.
HV
Thank you for encouraging me to get a second opinion,Dr Vosoghi.The second opinion from a different opthamologist was that my son does indeed have duane syndrome.He evidenced the retraction quite a bit the day of his appointment.The dr. does feel surgery will be of benefit at some point because he has about a 20 degree head turn.His vision is 20/20 though so now we are wondering at what point do we consider surgery since his vision is good and the duanes doesn't seem to cause him any bother at all.They would do a muscle transposition surgery.
I appreciate your advice.