H02.2

Clinical Causes: Facial nerve paralysis (e.g., Bell's palsy, stroke) Eyelid trauma or injury Surgical complications involving the eyelids or facial nerves Neurological disorders affecting eyelid muscle control Congenital abnormalities of the eyelids Tumors or growths impacting nerve or muscle function Infections that weaken eyelid muscles Chronic inflammation leading to scarring of eyelid tissues

Key Symptoms: Inability to fully close one or both eyelids, especially during sleep Persistent dryness or irritation of the eye surface Redness and swelling around the affected eyelid Sensitivity to light (photophobia) A sensation of grittiness or foreign body in the eye Increased tearing or watery eyes Potential corneal damage or ulcers if the condition persists untreated

Diagnosis Path: Diagnosis of lagophthalmos typically involves a clinical examination by an eye specialist. The examiner checks whether the eyelids can completely close, observes for signs of eye surface exposure, and assesses the blink reflex. Additional tests may include imaging studies if neurological causes are suspected, such as MRI or CT scans to evaluate nerve function. A slit-lamp examination can help identify corneal damage or dryness resulting from eyelid opening issues.

Treatment Protocols: Managing lagophthalmos aims to protect the eye surface and restore eyelid function where possible. Treatment options include: - **Lubricating eye drops or ointments:** To keep the eye moist and prevent dryness - **Taping or eyelid patches:** To assist with eyelid closure during sleep - **Measurement of eyelid tension:** Sometimes, surgical procedures like tarsorrhaphy (partial eyelid sewing) are performed to partially close the eyelids - **Ptosis surgery:** For cases involving drooping eyelids - **Facial nerve rehabilitation therapies:** To improve nerve function - **Addressing underlying causes:** Such as treating infections or managing neurological conditions In some cases, specialized devices or surgical interventions may be necessary to achieve better eyelid closure and protect the eye surface.