Some Common Eye Conditions

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Some Common Eye Conditions
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Blepharitis
Posterior
Anterior
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Complications of staphylococcal blepharitis
Trichiasis,
Madarosis,
Recurrent styes
Poliosis
Tear film instability
Marginal keratitis
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Signs of chalazion (meibomian cyst)
Painless, roundish, firm lesion within tarsal
plate
May rupture through conjunctiva and cause
granuloma
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Surgical Treatment of Chalazion
Injection of local anaesthetic
Insertion of clamp
Incision and curettage
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Sub Tarsal FB - Signs

• Possible fluorescein staining of cornea
• foreign body tracks, often vertical
• Embedded material on tarsal conjunctival surface
• Hyperaemia

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Corneal Abrasion (Acute) - Signs
Vary according to severity of trauma - Lid
oedema and erythema - Conjunctival hyperaemia -
Corneal epithelial defect (stain with
fluorescein) - Corneal oedema beneath defect -
Visual loss (due to epithelial disruption and
stromal oedema) - Possible secondary anterior
uveitis (anterior ciliary injection, cells,
flare)
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Corneal FB - Signs

• FB adherent to ocular surface
• Linear corneal scratches
• Corneal rust ring from ferrous fb
• Surrounding ring of oedema infiltrate if long
  standing
• Subconjunctival hge might be present

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Corneal Erosion

• Hx of trauma
• Corneal dystrophy eg Cogans
• Recurrent breakdown of corneal epithelium
• ? Defective adhesion of basement membrane
• Can take up to 3 months to resolve

• Unilateral sharp pain
• Lacrimation
• Photophobia
• Discomfort on awakening
• Blurring
• Can recur

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Contact Lens Red Eye Problems
Corneal infiltrative lesions - contact lens
related or marginal keratitis   - peripheral,
small (0.5 1.5 mm) with less anterior chamber
response - not a marker for increased risk of
bacterial infection   gtgtgtgtgt Microbial Keratitis
/ Acanthamoeba keratitis
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