Pseudoesotropia refers to the appearance of esotropia when the visual axes are in fact aligned. The appearance may be caused by a flat and broad nasal bridge, prominent epicanthal folds, a narrow interpupillary distance, or a negative angle kappa (see Chapter 7). Less than the expected amount of sclera is seen nasally, creating the impression that the eye is deviated inward (Fig 8-1). This is especially noticeable when the child gazes to either side. Because no real deviation exists, results of both corneal light reflex testing and cover testing are normal.
Table 8-1 Major Types of Esodeviation
Figure 8-1 Infant girl with pseudoesotropia. The child is looking to right gaze, and the broad epicanthal folds create the appearance of a left esotropia.
(Courtesy of Katherine A. Lee, MD, PhD.)
Excerpted from BCSC 2020-2021 series: Section 10 - Glaucoma. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.