Amblyopia and strabismus are two terms commonly confused and used interchangeably.
Lazy eye is amblyopia, meaning poor vision in one or both eyes.
Strabismus is the most common cause of amblyopia, and amblyopia often presents with strabismus.
Since the weaker (lazy) eye can’t see well, it may start to drift or wander outward, inward, upward, or downward. Hence, amblyopia can lead to eye misalignment.
However, amblyopia can occur without strabismus or any outward signs. So, lazy eye cannot be treated with surgery.