| Subject | Contents |
| Definition | The direction of the slant of a line drawn from the outer corner of the eye to the inner corner. |
| Alternative Names | Mongolian slant |
| Considerations | The palpebra are the upper and lower eyelids which, viewed together, make up the shape of the eye. A line drawn from corner to corner determines the slant of the eye (palpebral slant). Abnormal slanting of the eye may be associated with some genetic disorders and syndromes. The most commonly recognized syndrome associated with an abnormal palpebral slant is Down syndrome . A fold of skin ( epicanthal fold ) is often present in the inner corner of the eye in Down syndrome as well. |
| Common Causes | Isolated (i.e., not associated with any other defect) Down syndrome Fetal alcohol syndrome Several other genetic disorders also have abnormal palpebral slants as one of their features |
| Home Care | There is no special care for this sign. Instead, care must be appropriate for the particular condition of which an abnormal palpebral slant is a sign. |
| Call your health care provider if | Your infant has abnormal facial features You are concerned about your infant's ability to move his/her eyes Any abnormal color, swelling, or discharge from the eyes |
| What to expect at your health care provider's office | The medical history will be obtained and a physical examination performed. Medical history questions documenting palpebral slant may include: What is the slant (upward or downward)? What other symptoms are also present? Physical examination may include: An infant with an abnormal palpebral slant generally has other symptoms and signs that, when taken together, define a specific syndrome or condition. Diagnosis of that condition will be based on a family history, medical history, and a thorough physical evaluation. Diagnostic tests that may be performed are: Laboratory studies such as chromosome studies , enzyme assays, X-rays, and metabolic studies may be ordered to confirm the presence of a suspected disorder. After seeing your health care provider: If a diagnosis was made by your health care provider as the cause of an unusual palpebral slant, you may want to note that diagnosis in your personal medical record. |
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