Which type of glaucoma occurs due to an abnormality of the eye in very young children?

The type of glaucoma that occurs due to an abnormality of the eye in very young children is congenital glaucoma. This condition arises when there is a developmental defect in the eye's drainage system, leading to increased intraocular pressure. Congenital glaucoma is often associated with specific genetic factors and is present at birth or becomes apparent in the first few years of life.

Children with congenital glaucoma typically exhibit symptoms such as cloudy corneas, excessive tearing, sensitivity to light, and an enlarged eye. Early diagnosis and intervention are critical to prevent vision loss and to manage the ocular pressure effectively.

While childhood glaucoma refers to glaucoma occurring in a pediatric population, it may include secondary glaucoma or other types attributed to different causes. Adult glaucoma primarily affects older individuals, and secondary glaucoma can result from other medical conditions or injuries. Therefore, congenital glaucoma is specific to structural abnormalities in the eyes of very young children, making it the correct answer.