system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
18 month old child presents with both eyes adducted. What is the first thing for diagnosis?
assistant
The correct answer is  Given the age of the child in question, any test has to be performed under anesthesia(EUA), since the child will not cooperate for any examination. During EUA: Refractive error examination is done to rule out hypermetropia as a cause of B/L adduction. Force duction test is used for diagnosis of Restrictive strabismus (eg Duane's retraction syndrome).