thanks for writing to us ,
i do agree with the ENT who saw you . the bilateral mucus retention cysts wont cause you any of the problems you are facing . the cyst s were an incidental finding in your MRI .miosis
and even heterochromia ( even though common in chidren ) fits
into the diagnosis of Horners syndrome .
you need to get evaluated for horners syndrome , your opthalmologist / neurologists would be able to evalaute the same .
hope this helps .