The Hirschberg test can help identify different types of strabismus:
Esotropia: The light reflex is displaced outward, indicating that the eye is turned inward. Exotropia: The light reflex is displaced inward, indicating that the eye is turned outward. Hypertropia: The light reflex is displaced downward, indicating that the eye is turned upward. Hypotropia: The light reflex is displaced upward, indicating that the eye is turned downward.