Antiophthalmic factor is a term that refers to a substance that is essential for maintaining good vision or preventing eye diseases. There are plenty of synonyms for this word that can be used interchangeably depending on the context, including but not limited to Vitamin A, retinol, retinal, and beta-carotene. These substances are crucial for the healthy functioning of the eyes and can be found in various foods such as dark leafy greens, carrots, sweet potatoes, liver, and fish. Ensuring that you are consuming an adequate amount of antiophthalmic factor is essential for maintaining healthy eyesight and preventing various eye conditions such as dry eyes, age-related macular degeneration, and night blindness.