Tarsal kink syndrome

Tarsal kink syndrome, also known as congenital tarsal kink, is a rare congenital anomaly of the eyelids classified under other congenital malformations of the eyelid (ICD-10: Q10.3). This condition is characterized by a horizontal fold or kink of the upper eyelid tarsal plate that is present at birth. The tarsal plate is the firm connective tissue structure that gives the eyelid its shape and support. In tarsal kink syndrome, this plate is abnormally folded inward, causing the upper eyelid to appear deformed, often with the eyelid margin turning inward (entropion) or the eyelashes directed toward the eye surface. This can lead to corneal irritation, excessive tearing, and potential corneal damage if left untreated. The condition primarily affects the ocular and periocular structures. Affected newborns typically present with an obvious eyelid abnormality at birth, which may be unilateral or bilateral. The inward folding of the tarsal plate can cause the eyelid to assume an S-shaped configuration. In many cases, the condition resolves spontaneously within the first weeks to months of life as the tarsal plate matures and stiffens. Conservative management with lubricating eye drops or ointments to protect the cornea is often sufficient during this period. In persistent or severe cases where corneal damage is a concern, surgical correction may be required to restore normal eyelid anatomy and protect the ocular surface. Early ophthalmological evaluation is recommended to monitor for corneal complications.

Common questions about Tarsal kink syndrome