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Eyelash Poliosis
Causes
- Idiopathic- diagnosis of exclusion
- Vitiligo
- acquired pigmentary disorder of skin and hair with depigmented skin patches
- frequently associated with other autoimmune conditions.
- Chronic blepharitis
- Post-inflammatory change from atopic or contact dermatitis especially if there is a history of eczema or dermatitis involving the periocular region.
- Drug-induced
- topical prostaglandin F(2α) analogues used for glaucoma, usually reversible poliosis
- Skin lesions
- Cutaneous/ocular malignant melanoma may rarely present with poliosis due to destruction of melanocytes adjacent to a melanoma; biopsy is required for diagnosis
- Halo nevus or other benign nevus-associated poliosis
- localized whitening of lashes adjacent to a melanocytic nevus.
- Uveitis associated poliosis
- Phthisis bulbi
- Vogt–Koyanagi–Harada (VKH) disease
- a multisystem autoimmune disorder
- bilateral granulomatous uveitis, auditory symptoms, and meningeal signs.
- Sympathetic ophthalmia is a bilateral granulomatous uveitis