Conjunctiva Flashcards
Parts of conjunctiva
Palpebral
Bulbar
Conjunctival fornix
Layers of conjunctiva
Epithelium
Adenoid
Fibrous
Glands of conjunctiva
Mucin secretory glands (reflex tears)
Accessary lacrimal glands (basal secretion)
Mucin secretory glands in conjunctiva
Goblet cells
Crypts of Henle
Glands of Manz
Accessary lacrimal glands
Glands of Krause
Glands of wolfring
Types of conjunctivitis
Infectious types
Non infectious types
Infectious types of conjunctivitis
Bacterial
Viral
Ophthalmia neonatorum
Granulomatous conjunctivitis (parinaud oculoglandular syndrome)
Non-infectious type of conjunctivitis
Allergic
Cicatricial immune mediated
Mechanical/ irritative/ toxic
Neoplastic
Allergic conjunctivitis include
Simple allergic(hay fever, seasonal, perinnial)
Vernal keratoconjunctivitis
Atopic keratoconjunctivitis
Giant papillary conjunctivitis
Phlyctenular conjunctivitis
Contact dermatoconjunctivitis
Protective mechanism of conjunctiva
Low temp.
Lids protection
Tears flushing , antibacterial
Tear immunoglobulin(Ig A)
Antibacterial action of tear is due to
Lysozyme
Beta lysin
Lactoferrin
Blood supply of conjunctiva
Peripheral arterial arcade
Marginal arcade
Anterior ciliary arteries (pericorneal plexus)
Veinous drainage of conjunctiva
Venous plexus of eyelid
Ant. Ciliary veins
Lymphatics of conjunctiva
2 layers
Superficial
Deep
Lateral side - preauricular lymph nodes
Medial side - submandibular lymph nodes
Nerve supply of conjunctiva
Long ciliary nerve(circumcorneal zone)
Branch of lacrimal, supratrochlear, infratrochlear, supraorbital, frontal nerves
