Anatomy Enophthalmos is an uncommon feature of Horner’s syndrome. Enophthalmos is due to palsy of: A Levator palpebrae superioris B Superior tarsal muscle C Orbitalis muscle D Inferior tarsal muscle 💡 Explanation Enophthalmos is an uncommon feature of Horner's syndrome. Enophthalmos is due to palsy of: ✓ Correct Answer: C. Orbitalis muscle