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disorders of lashes
 

disorders of lashes

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    disorders of lashes disorders of lashes Presentation Transcript

    • DISORDERS OF LASHES 1. Trichiasis 2. Metaplastic lashes 3. Distichiasis 4. Phthiriasis palpebrarum 5. Madarosis 6. Poliosis
    • Trichiasis Signs Complications• Posterior misdirection of normal lashes • Inferior punctate epitheliopathy• Most frequently affects lower lid • Corneal ulceration and pannus
    • Treatment Options for Trichiasis1. Epilation - but recurrences within few weeks2. Electrolysis - but frequently repeated treatments required3. Cryotherapy - for many lashes4. Laser ablation - for few scattered lashes5. Surgery - for localized crop resistant to other methods
    • Metaplastic lashes Signs CausesAberrant lashes arising from meibomian Cicatrizing conjunctivitis (ocular pemphigoid,gland orifices Stevens-Johnson, chemical burns)
    • Distichiasis Signs Treatment• Second row of lashes arising • Division into anterior and posterior from meibomian gland orifices lamellae• Congenital • Cryotherapy to posterior lamella• Occasionally dominantly inherited • Reapposition of lamellae
    • Phthiriasis palpebrarum• Infestation of lashes by pubic crab louse and its ova (nits)• Typically affects children in poor hygenic conditions Lice gripping base of lashes Nits and empty shells adhere to base of lashes Treatment - removal, destruction and delousing
    • MadarosisDecrease in number or complete loss of lashes Local causes • Chronic anterior lid margin disease • Infiltrating tumours • Burns, radiotherapy or cryotherapy Systemic causes • Generalized alopecia • Myxoedema • SLE • Syphilis • Leprosy Following removal
    • PoliosisPremature localized whitening of hair Ocular associations • Chronic anterior blepharitis • Sympathetic ophthalmitis Systemic associations • Vogt-Koyanagi-Harada syndrome • Waardenburg syndrome