Tropia is a misalignment of the eyes when looking at an object. It is an apparent deviation of the eye. It is also known as strabismus, squint or crossed eyes. There are different types of tropia based on the direction the eye deviates to.
- Esotropia – One or both eyes turn inwards towards the nose.
- Exotropia – One or both eyes turn outwards away from the nose.
- Hypertropia – One eye deviates upwards (above the line of vision).
- Hypotropia – One eye deviates downwards (below the line of vision).