Hidden adult strabismus, which refers to hidden strabismus in adults, usually cannot be restored by treatment, but usually does not cause more serious harm and can be left untreated. Hidden strabismus is a less dangerous type of strabismus than overt strabismus. It does not usually show symptoms of strabismus, but can only be induced by a doctor’s examination. Hidden strabismus is usually not harmful to the patient’s eye health and does not reduce vision, and because it does not usually show any symptoms, it usually does not require treatment, and there is currently no effective treatment to eliminate hidden strabismus. There is no effective treatment to eliminate occult strabismus. If occult strabismus progresses to dominant strabismus, it can be corrected by surgery.