Illustrated tutorials in clinical ophthalmology PDF
Preview Illustrated tutorials in clinical ophthalmology
DISORDERS OF LASHES 1. Trichiasis 2. Metaplastic lashes 3. Distichiasis 4. Phthiriasis palpebrarum 5. Madarosis 6. Poliosis Trichiasis Signs Complications Inferior punctate epitheliopathy • Posterior misdirection of normal lashes • • Most frequently affects lower lid • Corneal ulceration and pannus Treatment Options for Trichiasis 1. Epilation - but recurrences within few weeks 2. Electrolysis - but frequently repeated treatments required 3. Cryotherapy - for many lashes 4. Laser ablation - for few scattered lashes 5. Surgery - for localized crop resistant to other methods Metaplastic lashes Signs Causes Aberrant 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 Madarosis Decrease 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 Poliosis Premature localized whitening of hair Ocular associations Chronic anterior blepharitis • Sympathetic ophthalmitis • Systemic associations Vogt-Koyanagi-Harada • syndrome Waardenburg syndrome • CHRONIC MARGINAL BLEPHARITIS 1. Anterior • Staphylococcal • Seborrhoeic 2. Posterior • Meibomianitis • Meibomian seborrhoea 3. Treatment
Description:The list of books you might like
