Bitot's spots refer to the buildup of keratin on the conjunctiva, which are white patches that form on the eyes. These spots are indicative of vitamin A deficiency, which makes them an essential sign in diagnosing the condition. Although Bitot's spots are the commonly used term for these white patches, there are various other synonyms for referring to these signs. Some of these synonyms include xerosis conjunctivae, foamy plaques, irregular white spots, cornea xerosis, and conjunctival xerosis. While these terms may not be as widely known as the Bitot's spots, they are equally important in identifying the vitamin A deficiency and initiating the required treatments.