The palpebral slant is the direction of the slant of a line that goes from the outer corner of the eye to the inner corner.
The palpebral are the upper and lower eyelids, which make up the shape of the eye. A line drawn from the inner corner to the outer corner determines the slant of the eye, or palpebral slant. Slanting and a fold of skin (epicanthal fold) are normal in people of Asian descent.
Abnormal slanting of the eye may occur with some genetic disorders and syndromes. The most common of these is Down syndrome. People with Down syndrome often also have an epicanthal fold in the inner corner of the eye.
Palpebral slant may not be part of any other defect. However, in some cases, it may be due to:
Contact your health care provider if:
Your provider will perform a physical exam and ask questions about your child's medical history and symptoms.
An infant with an abnormal palpebral slant will usually have other symptoms of another health condition. That condition will be diagnosed based on a family history, medical history, and a physical exam.
Tests to confirm a disorder may include:
Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.