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What is Lagophthalmos is seen in: and explain in detail?
Ans: A (Leprosy) Ref: Parson's Diseases of the Eye :21st edition, pg no - 176: Basak Diseases of the Eye 5th edition, pg no 117. Explanation: Lagophthalmos Inadequate closure of the eyelids, resulting in exposure of the eye. Etiology - nocturnal lagophthalmos Facial nerve palsy - Bell's palsy, leprosy, sarcoid, CSOM, Post mastoidectomy Proptosis & thyroid exophthalmos Comatose patient Cicatricial deformity of the upper lid Clinical features : Exposure keratitis Neuroparalytic Keratitis - Exposure keratitis due to facial nerve palsy. Neurotrophic Keratitis - Keratitis due to corneal anesthesia - Trigeminal nerve palsy.