Pseudostrabismus is the false appearance of crossed eye

Human eye

The human eye is an organ which reacts to light for several purposes. As a conscious sense organ, the eye allows vision. Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth...

s. When the eyes are actually crossed or not completely aligned with one another it is called strabismus

Strabismus

Strabismus is a condition in which the eyes are not properly aligned with each other. It typically involves a lack of coordination between the extraocular muscles, which prevents bringing the gaze of each eye to the same point in space and preventing proper binocular vision, which may adversely...

. Pseudostrabimus generally occurs in infants and toddler

Toddler

A toddler is a young child, usually defined as being between the ages of one and three. Registered nurse, midwife and author, Robin Barker, states 'Any time from eight months onwards your baby will begin to realise he is a separate person from you...

s whose facial features are not fully developed. The bridge of their nose is wide and flat. With age, the bridge will narrow and the epicanthal fold

Epicanthal fold

An epicanthic fold, epicanthal fold, or epicanthus is a skin fold of the upper eyelid, covering the inner corner of the eye....

s in the corner of the eyes will go away. This will cause the eyes to appear wider, and thus not have the appearance of strabismus. To detect the difference between strabismus and pseudostrabismus use a flashlight to shine into the child's eyes. When the child is looking at the light a reflection can be seen on the front surface of the pupil. If the eyes are aligned with one another then the reflection from the light will be in the same spot of each eye. If strabismus is present then the reflection from the light will not be in the same spot of each eye.

Rakel's Textbook of Family Medicine states, "A common misconception is that children with crossed eyes outgrow the condition, but this is generally not the case. This belief stems from the confusion between true strabismus and pseudostrabismus. When a child's eyes are truly crossed, it is always a serious condition and requires the care of an ophthalmologist."

Pseudostrabismus is more likely to be observed in Native American

Indigenous peoples of the Americas

The indigenous peoples of the Americas are the pre-Columbian inhabitants of North and South America, their descendants and other ethnic groups who are identified with those peoples. Indigenous peoples are known in Canada as Aboriginal peoples, and in the United States as Native Americans...

 or East Asian infants due to the presence of epicanthic fold obscuring the medial aspect of the eye.