Extra Skin Folds & Eye Problems in Infants

The epicanthal fold, an extra skin fold that covers the inner corner of the eye, can be a normal trait in infants of East Asian or Native American descent. They inherit the fold, which gives the eye an almond-shaped appearance, from their parents. However, in some cases, an epicanthal fold can be a sign of a genetic abnormality, most commonly Down Syndrome.

Asian babies have an epicanthal fold, or an extra bit of skin on the inner corner of the eyelid, giving the eyes an almond-shaped appearance. Credit: LWA/Dann Tardif/Blend Images/Getty Images

Do These Extra Skin Folds Cause Eye Problems?

Epicanthal folds, unless associated with a genetic condition, do not by themselves lead to any problems with vision. They do not obscure an infant's sight. However, it might give the appearance that the baby's eyes are not completely aligned with one another. The medical term for this condition is strabismus. However, children with epicanthal folds do not actually have crossed eyes. They instead have a condition called pseudostrabismus, which is the appearance of crossed eyes.

What is Pseudostrabismus?

Pseudostrabismus is the false appearance of eyes that do not look straight ahead. The epicanthal fold makes it seem like the eyes might be going in slightly different directions, when in fact, they are aligned.

According to the website for the American Association for Pediatric Ophthalmology and Strabismus, pseudostrabismus gives children a false appearance of the eye turning inward because "the skin fold at the inner corner of the eyelids can be broad... [and can] contribute to a cross-eye appearance since there is less space (white area) between the iris and the inner corner of the eyelid. This is especially noticeable in pictures."

How Can We Differentiate Pseudostrabismus from Strabismus?

A doctor should be able to notice the difference between pseudostrabismus and strabismus by shining a flashlight into the child's eyes. When the child looks at the light, the doctor will see two small reflections on the surface of the pupil. If the eyes are aligned, or both looking in the same direction, the light will be reflected from the same spot of each eye.

What is the Treatment for Pseudostrabismus?

Making the correct diagnosis, or telling the difference between strabismus and pseudostrabismus, is essential, because pseudostrabismus does not require any treatment. As the child gets older, his or her face will mature and the false appearance of the eyes turning inward will gradually improve.

When Should I See a Doctor?

As with other medical concerns, parents should seek advice from a doctor if they have any uncertainties or doubts, because a proper and timely diagnosis can be essential to getting appropriate and early treatment. Parents should see a doctor if they think the eyes are misaligned, if they are concerned about the epicanthal folds, or notice any other issues in their child's development.

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