Symptoms of intermittent strabismus are shown in the following two aspects: 1. Childhood: there can be a series of microscopic manifestations, such as visual confusion. Symptoms are more pronounced in sunlight, prone to photophobia, and manifest as a preference for monocular vision without double vision or double vision symptoms; 2. Adult phase: double vision, double vision when observing objects when fatigued, and double vision disappears when concentrating. Patients can undergo simple surgery with better results. A thorough evaluation of the patient is required before surgery to induce the maximum strabismus of the patient.