Transcript Signs of chalazion (meibomian cyst)

Some Common Eye Conditions
Blepharitis
Posterior
Anterior
Complications of staphylococcal blepharitis
Trichiasis,
Madarosis,
Poliosis
Recurrent styes
Tear film instability
Marginal keratitis
Signs of chalazion (meibomian cyst)
Painless, roundish, firm lesion
within tarsal plate
May rupture through conjunctiva
and cause granuloma
Surgical Treatment of Chalazion
Injection of local anaesthetic
Insertion of clamp
Incision and curettage
Sub Tarsal FB - Signs
Possible fluorescein staining of cornea
-foreign body tracks, often vertical
Embedded material on tarsal conjunctival surface
Hyperaemia
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)
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
Corneal Erosion
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Hx of trauma
Corneal dystrophy
eg Cogan’s
Recurrent breakdown of
corneal epithelium
? Defective adhesion of
basement membrane
Can take up to 3
months to resolve
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Unilateral sharp pain
Lacrimation
Photophobia
Discomfort on
awakening
Blurring
Can recur
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
>>>>> Microbial Keratitis / Acanthamoeba keratitis
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