Introduction

• Congenital condition in which normal skin tissue is at an abnormal site .
• Signs: corneal opacities, hairs growing from cornea.
• Diagnosis: clinical signs, age.
• Treatment: surgical removal.
• Prognosis: good.

Pathogenesis

Etiology

• Congenital - impaired differentiation of eyelid/corneal tissue.

Pathophysiology

• Embryological defect → impaired differentiation of eyelid tissue → skin on conjunctiva/cornea.
• Dermoid may consist of connective tissue, hair follicles, sebaceous glands, sweat glands, fat.
• Larger lesions may physically impair vision.

Diagnosis

Treatment

Prevention

Outcomes