Abstract Case report Patient with abducens palsy treated with Foster technique after injection of botulinum toxin. Exotropia, adduction limitation, face-turn inversion and diplopia were observed during the post-operative period. He was reinterviened by performing a resection on the medial rectus of the affected and toxin was injected into the lateral rectus, as it was technically impossible to remove the scleral fixation with an acceptable result. Two years later diplopia and increased exotropia reoccurred which again required resection. Conclusions The Foster technique is our technique of choice in complete abducens palsy, however it is important to point out that there could be complications, such as overcorrections.