This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular Motility, Subject name: Ophthalmology
Duanne syndrome involves- 
Select and explain. 
A. Superior oblique, B. Inferior oblique, C. Lateral rectus, D. Superior rectus
C: Lateral rectus
Answer: C: Lateral rectus 
Explanation: Ans. is 'c' i.e., Lateral rectus o Duane retraction syndrome represents the most frequent and most prominent congenital cranial dysinnervation disorder (CCDD).o It is due to fibrosis of the lateral rectus or an innervational anomaly with Co-contraction of the lateral and medial recti.o There is deficiency of abduction, associated with impaired adduction, contraction of palpebral fissure and oblique movements of the eye.