What Is Esotropia?
3. Acquired Esotropia
Acquired esotropia refers to esotropia that occurs after infancy and does not always respond to farsighted glasses. It is a category on its own as it does not fit into the categories of accommodative esotropia or congenital esotropia. Although this type of esotropia may be found in those aged 1 to 8 years old, it generally develops in those 2 to 5 years old. More studies are required to help determine the cause of acquired esotropia.
Experts have agreed that some cases may be due to a primary motor anomaly while other cases are due to a primary sensory anomaly. Globally, of all children diagnosed with esotropia, 10.4% have been found to have acquired esotropia. The angle of deviation of the affected eye is usually smaller and surgery is more likely to be successful compared to patients with congenital esotropia.
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