Strabismus (cont\'d)

Strabismus & Amblyopia

Understanding the Difference


Strabismus is classified by the direction the eye turns:

  • Inward turning is called esotropia

  • Outward turning is called exotropia

  • Upward turning is called hypertropia

  • Downward turning is called hypotropia

Other classifications of strabismus include:

  • The frequency with which it occurs, either constant or intermittent

  • Whether it always involves the same eye (unilateral)

  • If the turning eye is sometimes the right eye and other times the left eye (alternating)


Signs and symptoms of amblyopia include:

  • An eye that wanders inward or outward

  • Eyes that may not appear to work together

  • Poor depth perception

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