Hydrophthalmos, also known as buphthalmos, is a condition characterized by an enlarged eye due to the buildup of fluid within the eye. There are several synonyms for hydrophthalmos used in medical literature, including "giant eye," "big eye," and "bulging eye." Other synonyms include "megalocornea," which refers to an abnormally large cornea, and "congenital glaucoma," which highlights the congenital nature of the condition. Hydrophthalmos is typically identified during infancy or early childhood and can lead to vision loss if left untreated. Early diagnosis and treatment, including surgical intervention, can help preserve vision and prevent further complications.