WHAT IS DUANE SYNDROME?
Duane syndrome, also
called Duane retraction syndrome (DRS), is a congenital and non-progressive
type of strabismus due to abnormal development of the 6th cranial nerve. It is
characterized by difficulty rotating one or both eyes outward (abduction) or
inward (adduction). There may also be changes of eyelid position on attempted
movement of the eyes.
WHAT ARE THE CHARACTERISTICS OF DUANE SYNDROME?
·
Strabismus: the eyes
may be misaligned and point in different directions some or all of the time.
·
Head position: patients
often maintain an abnormal head posture or head turn to keep the eyes straight.
·
Amblyopia (reduced
vision in the affected eye): occurs in 10% of patients.
· Eyelid narrowing: the affected eye may
appear smaller than the other eye.
· Upshoot or downshoot: with certain eye
movements, the eye may occasionally deviate upward or downward.
تعليقات
إرسال تعليق