Comitant Esotropia - Esotropia (ET) is a form of strabismus in which the eyes are ‘turned in’ with respect to one another. It is the most common form of strabismus encountered in clinical practice.

A comitant ET is one in which the magnitude (in prism-diopters) of the esotropia is the same in all fields of gaze. [...] 31 Comitant Esotropia Congenital (onset < age 6 m) Acquired (onset > age 6 m) With nystagmus W/o nystagmus Nystagmus blockage syndrome Latent nystagmus The Peds/Strabismus book covers these three forms of congenital ET with nystagmus Ciancia syndrome 32 Comitant Esotropia Congenital (onset < age 6 m) Acquired (onset > age 6 m) With nystagmus W/o nystagmus Nystagmus blockage syndrome Latent nystagm. [...] Key exam finding: The amount of esotropia measured with the child looking at near, ET’ (note that the singlequote mark after the T indicates we’re talking about alignment during near gaze) is roughly equal to the amount measured when the child is looking at distance, ET (note the absence of the singlequote, meaning this refers to alignment at distance). [...] Key exam finding: The amount of esotropia measured with the child looking at near, ET’ (note that the singlequote mark after the T indicates we’re talking about alignment during near gaze) is roughly equal to the amount measured when the child is looking at distance, ET (note the absence of the singlequote, meaning this refers to alignment at distance). [...] Key exam finding: The amount of esotropia measured with the child looking at near, ET’ (note that the singlequote mark after the T indicates we’re talking about alignment during near gaze) is roughly equal to the amount measured when the child is looking at distance, ET (note the absence of the singlequote, meaning this refers to alignment at distance).