Strabismus - Classification

Classification

1. Apparent squint or pseudostrabismus
   1. Pseudoesotropia
   2. Pseudoexotropia
2. Latent squint (heterophoria)
   1. Esophoria
   2. Exophoria
   3. Hyperphoria
   4. Hypophoria
   5. Cyclophoria
3. Manifest squint (heteropia)
   1. Concomitant squint
      1. Convergent squint
      2. Divergent squint
      3. Vertical squint
   2. Incomitant squint
      1. Paralytic strabismus
      2. A and V pattern heteropias
      3. Restrictive squint