الفهرس 
Duane Retraction SyndromeOnly 14 pages are availabe for public view
 |  | from | 124 |  |  |
| | | from | 124 | | |
Abstract
Duane retraction syndrome is a congenital ocular motility disorder
characterized by marked limitation of abduction, variable limitation of
adduction, and globe retraction with narrowing of the palpebral fissure on
adduction. It is the most common type of congenital ocular aberrant
innervation with an incidence of 1% to 4% of strabismus patients.
This prospective, interventional, non randomised study of 51
patients who were diagnosed with DRS at Ophthalmology and Squint
clinic was done from July 2017 to July 2019. After detailed information
regarding age, gender, laterality, family history of strabismus, refractive
status and history of strabismus surgery was taken. Visual acuity and
refraction, complete orthoptic examination. All patients were categorized
into types I, II, and III DRS, based on Huber’s classification.
Spectacles were prescribed for patients with refractive errors.
Patching of the non amblyopic eye was advised in patients below the age
of 10 years.
Surgery was advised in patients with anomalous head posture of
more than 15 degrees, cosmetically unacceptable upshoot or downshoot,
ocular deviation in primary position and globe retraction. Post operative
follow up of surgical cases was done at 1 month and were followed up for
a minimum period of 6 months .
The procedure performed was determined by the amount of
deviation in primary position and the degree of abnormal head position.
Forced duction testing was performed intraoperatively. Medial or lateral
rectus muscle recession was the surgical procedure of choice. In esotropic
patients, medial rectus (MR) recession was done and in exotropic patients
lateral rectus (LR) recession was done. In patients with unacceptable
overshoot, lateral rectus recession with Y splitting was done.
The study showed that every patient of DRS should be carefully
evaluated early in order to avoid amblyopia. Surgery should be done on
individual bases in order to achieve best results. Patients and parent
counseling is of great important.