Part 3

• What causes eye pain?

  Foreign body

  Trauma

  Reduced tear film

  Coreneal epithelial disturbance

  Inflammation

  Raised intraocular pressure
• What are the different mechanisms of pain?

  Nociceptive - damage to non-neural tissue

  Neuropathic - damage to nerve

  Inflammatory - activation of nociceptors by inflammatory mediators

  Sudden raised intra-ocular pressure - activation of nociceptors by ATP
• There are no pain receptors in the lens or retina
• What is blepharitis?

  Inflammation of the eyelids

  Very common

  Multiple types

  Warm compress

  Lid hygiene
• What is meibomianitis?

  Inflammation of meibomian glands
• What is cyst of Moll?

  Blocked gland of Moll (modified sweat gland)
• What is a stye?

  Blocked sebaceous gland related to hair follicle
• What is chalazion?

  Blocked meibomian gland
• What is shown in this image?

  Blepharitis

  
• What is shown in the image?

  Meibomianitis

  
• What is shown in the image?

  Cyst of Moll

  
• What is shown in the image?

  Stye

  
• What is shown in the image?

  Chalazion

  
• What is shown in the image?

  Entropion

  
• What is entropion?

  Eyelid turned in, lashes rubbing on cornea
• What is shown in the image?

  Ectropion

  
• What is ectopion?

  Eyelid turned out
• What is shown in the image?

  Trichiasis

  
• What is trichiasis?

  Lashes turned in -> rib on cornea
• What are the different types of conjunctivitis?

  Bacterial -> sticky discharge

  Viral -> watery discharge, follicles

  Allergic -> chemosis (inflammation of conjunctiva), papillary changes
• What is shown in the image?

  Bacterial conjunctivitis

  
• What is shown in the image?

  Viral conjunctivitis

  
• What is shown in the images?

  Allergic conjunctivitis

  
• How do you see corneal problems?

  Fluorescein & blue light

  -> shows epithelial defects
• What does the ophthalmic division of tigeminal nerve innervate (V1)?

  Upper eye lid

  Palpebral conjunctiva

  Bulbar conjunctiva

  Cornea

  Ciliary body

  Iris
• What does the maxillary division of the trigeminal nerve innervate (V2)?

  Lower eye lid

  Palpebral conjunctiva
• Fill in the blanks

  A) Skin

  B) Conjunctiva

  C) Tarsal plate

  D) Meibomian gland

  E) Eyelash

  F) Sebaceous gland

  G) Gland of Moll

  H) Sclera

  I) Choroid

  J) Retina

  K) Optic nerve

  L) Retinal artery

  M) Vitreous

  N) Cornea

  O) Iris

  P) Ciliary body

  
• What is inflammation of skin called?

  Dermatitis
• What is inflammation of the conjunctiva called?

  Conjunctivitis
• What is inflammation of Meibomian gland called?

  Meibomianitis
• What is inflammation of the eyelash called?

  Blepharitis
• What is inflammation of the sclera called?

  Scleritis
• What is inflammation of the choroid called?

  Choroiditis
• What is inflammation of the retina called?

  Retinitis
• What is inflammation of the optic nerve called?

  Optic neuritis
• What is inflammation of the retinal artery called?

  Vasculitis
• What is inflammation of the vitreous called?

  Vitritis
• What is inflammation of the cornea called?

  Keratinitis
• What is inflammation of the iris called?

  Iritis
• What is inflammation of the cliary body called?

  Cyclitis