The main clinical manifestations of neonatal strabismus, commonly known as crooked neck, are protruding neck mass, tilted head, and asymmetry of both sides of the face.
1. Protruding neck mass: The tilted neck is often caused by abnormal development of the sternocleidomastoid muscle and muscle contraction disorders, which results in a protruding mass in the front one-third of the neck, but the neck can still be moved and is often painless.
2. Tilted head: due to the tilted neck which leads to uneven force on both sides of the head, the head is gradually tilted and even affects the head movement.
3. Asymmetric face: Due to the uneven pulling force on the face by the sternocleidomastoid muscle and cervical vastus muscle on both sides, it will lead to asymmetric face in the long run, and the two eyes and two ears are not at the same level, which will even affect the visual balance and eyesight.
Newborns diagnosed with cervical strabismus should seek medical treatment as soon as possible to avoid delaying the condition and causing irreversible damage to vision and posture.