👉 A polystigmatism is a condition in which a person's vision appears blurred or distorted due to a lack of aqueous humor, a substance that helps clear the eye's lens. This can happen when there are abnormalities in the eye's structure, such as cataracts and glaucoma. There are also other types of polystigmatism, including keratoconus and anisometropia. Polystigmatism can be caused by various factors, including genetics or environmental factors
