Infantile exotropia typically presents at what age?

Infantile exotropia typically presents at what age?

• A. Birth
• B. Before 6 months
• C. After 1 year
• D. After 3 years

Answer: (B)

Infantile exotropia is a misalignment that begins early in life, reflecting the immature development of binocular vision. It typically presents before six months of age, often within the first weeks of life. This very early onset distinguishes it from exotropias that appear later, such as intermittent exotropia, which usually becomes noticeable in early childhood (around 2–3 years). Because the binocular system is still developing in infancy, an outward turning of the eyes that appears during the first six months is characteristic of infantile exotropia. If onset occurs after that window, other causes or types of exotropia are more likely.

Infantile exotropia is a misalignment that begins early in life, reflecting the immature development of binocular vision. It typically presents before six months of age, often within the first weeks of life. This very early onset distinguishes it from exotropias that appear later, such as intermittent exotropia, which usually becomes noticeable in early childhood (around 2–3 years). Because the binocular system is still developing in infancy, an outward turning of the eyes that appears during the first six months is characteristic of infantile exotropia. If onset occurs after that window, other causes or types of exotropia are more likely.