RED EYE Flashcards

1
Q

Pain, moderate to severe (usually acute onset, rapid progression)
Redness, photophobia (may be severe), discharge, blurred vision (especially if lesion on visual axis)
Awareness of white or yellow spot on cornea
Usually unilateral

A

Microbial keratitis (bacterial)

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2
Q

Pain, burning, irritation, photophobia, blurred vision, redness
atopic px

A

Herpes simplex keratitis

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3
Q

Eye moderately red and slightly watery
Mild foreign body sensation
Mild photophobia
(NB: symptoms vary in severity; some cases are asymptomatic)
CLs wearer

A

contact lens-associated infiltrative keratitis

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4
Q

signs of chlamydial conj

A

oedema/ptosis
lymph node swelling
conj- hyperaemic/chemiosis
infiltrates on cornea

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5
Q

History usually more than two weeks
Ocular gritty sensation and sticky discharge
Drooping upper lid(s) (often unilateral
pain/irritation/swelling

A

chlamydial conjunctivitis

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6
Q

management for marginal keratitis

A

lid hygeine
sun glasses for photophobia
usually resolves by itself, but it may be dealt with more quickly if steroid and antibiotic drops are prescribed.
1 wk urgent referral to opthalmologist- they will take microbial cultures and investigates px immune system

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7
Q

management of CL- infiltrative keratitis

A

Temporarily discontinue lens wear
Most signs and symptoms resolve within 48 hours
infiltrates resolve over 2-3 weeks
Advise against extended wear
Warn about possibility of recurrence. If condition recurs, switch to disposable CLs
Lid hygiene if blepharitis present
Ocular lubricants for symptomatic relief
Topical antibiotic (chloramphenicol, azithromycin [off-licence use]) / oral antibiotic (tetracycline group) may be indicated for blepharitis (see Clinical Management Guideline on Blepharitis (lid margin disease))

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8
Q

management of viral conj

A

ensure serious hygiene - wash hands/equipment
normally self-limiting, resolving within one to two weeks
condition is highly contagious for family, friends and work colleagues (do not share towels, etc)
you remain infectious for after 2wks - stay away from other if in close px contact
cold compress
discontinue cl wear
antihistamines for itching
if corneal involvement the refer emergently to ophthalmologist

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9
Q

RF for Microbial keratitis (bacterial)

A

CL wearers >
increased days of wear
poor hand, lens and storage case hygiene
youth
male gender
smoking
internet purchase of lenses, particularly cosmetic lenses
corneal exposure
immune compromised
lid infection

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10
Q

DD of allergic conjunctivitis

A

seasonal allergic conj
preseptal/orbital cellulitus
insect bite/sting

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11
Q

management of allergic conjunctivitis

A

no eye rubbing
Reassure- self resolving
cool compresses
avoid allergen
Anti histamines(anti allergy drops)

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12
Q

signs of Microbial keratitis (bacterial)

A

Lid oedema
Epiphora
Discharge (mucopurulent or purulent)
Conjunctival hyperaemia and infiltration
Corneal lesion usually single (central or mid-peripheral)
necrosis, oedema, ac activity

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13
Q

signs of Marginal keratitis

A

Ulcer (stromal infiltrate with overlying epithelial loss) which may be round or arcuate, single or multiple, unilateral or bilateral, adjacent to limbus, and separated from limbus by interval of clear cornea
Ulcer stains with fluorescein
Hyperaemia and oedema of adjacent bulbar conjunctiva

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14
Q

management for acute HSK

A

aciclovir 3% (the treatment should continue for at least 3 days after healing is complete)
ganciclovir 0.15% ophthalmic gel (treatment should continue for 7 days after the healing is complete).

monitor closely for 72hrs- if no improvement refer urgently to ophthalmologist

in severe cases/bilateral/children/CL wearers same day emergency referral to opthalmologist- corneal swabs/biopsy / antiviral

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15
Q

management of chlamydial conj

A

avoid cl wear
ocular lubricants
refer urgently to gp with a view to refer onwards to gent-urinary clinic
they are given antibiotics- then resolves
sexual partners need treatment

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16
Q

Ocular discomfort increasing to pain
Lacrimation
Red eye
Photophobia
Condition tends to be recurrent

A

marginal keratitis- toxic reaction to bacteria

17
Q

Sudden eyelid swelling
Ocular itching
May be unilateral
Watery or mucoid discharge (mild)
Chemiosis

A

Acute allergic conjunctivitis

18
Q

signs of contact lens-associated infiltrative keratitis

A

Peripheral anterior stromal infiltrate, single or multiple
Usually small (generally less than 1.0mm in diameter)
Overlying epithelium usually stains with fluorescein
Conjunctival hyperaemia, mild
Epiphora, mild (or absent)
Anterior chamber quiet or mildly inflamed
No lid oedema
Usually unilateral

19
Q

Risk factors of HSK

A

Poor general health, immunodeficiency, fatigue
Systemic or topical steroids, or other immunosuppressive drugs

Possible aggravating factors

sunlight (UV), fever, extreme heat or cold, infection (systemic or ocular), trauma (ocular)
History of previous attacks of ocular herpes simplex infection (key diagnostic feature)
Severe atopic disease

20
Q

signs of viral conj

A

Watery discharge

Conjunctival hyperaemia (may be intense) and chemosis

Follicles on palpebral conjunctiva, especially upper and lower fornix

21
Q

management for microbial keratitis

A

same day emergency referral to opthalmologist - swabs- px needs to take cos and case with them- antibiotic drops or anti-fungal depending on cause
compliance discussion in terms of CLs

22
Q

Differential diagnosis of Marginal keratitis

A

HSK
CL- infiltrative keratitis
microbial keratitis

23
Q

Acute onset
redness
discomfort, usually described as burning or grittiness
watering
Blurred vision if central cornea involved
Systemic malaise

A

Viral conjunctivitis