Esotropia is a type of strabismus, a condition where the eyes do not properly align. In esotropia, one or both eyes turn inward, which can affect vision and depth perception. This misalignment can be constant or intermittent and may occur in children or adults. The exact cause of esotropia can vary, including genetic factors, muscle imbalances, or neurological issues. Treatment options often include glasses, vision therapy, or surgery to help realign the eyes and improve visual function. Early diagnosis and intervention are important for better outcomes.