NOT typically true about Infantile (congenital) ET?

• A. It is typically a large angle deviation (> 40 pd)
• B. It is typically intermittent
• C. It typically occurs prior to 6 months of age
• D. It is usually idiopathic in nature

Answer: (B)

Infantile esotropia presents very early, usually within the first six months of life, and shows a large, constant inward turn of the eyes (typically a large angle, often >40 prism diopters). It is not intermittent; the deviation tends to be constant rather than wax-and-wane. That’s why the statement about being intermittent is not true for this condition. The other descriptors fit well: onset before six months, a large constant angle, and the common classification as idiopathic. If you contrast with accommodative esotropia, that form can improve with refractive correction and may show more variability, which helps keep these conditions distinct.