Saturday, 3 December 2016

Eyelids - General Features



Eyelids - General Features
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Eyelid layers(superficial to deep)
  • Skin
  • Subcutaneous tissue
  • Orbicularis oculi
  • Orbital septum
  • Tarsal plate
  • Palpebral conjunctiva
Glands of eyelid
  • Meibomian glands/tarsal glands
    • Modified sebaceous glands
    • Open at the lid margin
    • Secrets oily layer of tear film
  • Glands of zeis
    • Modified sebaceous glands
    • Open into the follicles of eyelashes
  • Glands of Moll
    • Modified sweat glands
    • Open into hair follicle or into the ducts of zeis glands
  • Accessory lacrimal glands wolfring
    • Present near the upper border of tarsal plate
Motor nerve supply of lid
  • Facial nerve to orbicularis oculi
  • Oculomotor to levator palpebrae superioris
  • Sympathetic fibers to mullers muscle
Sensory supply to lid
  • Trigeminal nerve
Inflammation of glands of eyelid
  • Hordeolum externum/stye
    • Acute suppurative inflammation of glands of zeis and moll
  • Hordeolum internum
    • Suppurative inflammation of meibomian glands
  • Chalazion/meibomian/tarsal cyst
    • Chronic non infective(non suppurative)lipogranulomatous inflammation of meibomian glands



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