Ophthalmology Flashcards

1
Q

Drusen aka…

A

‘amber material under the retinal pigment epithelium in both eyes’

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2
Q

herpes zoster ophthalmicus

Lesion to where means urgent ophthalmological review?

aka…. sign,

Management

eye complication most common

A

Lesions on the tip of the nose (occular involvment)

Hutchinson’s sign

Management
1. oral antiviral treatment for 7-10 days (start within 72 hours) - can do IV if v severe/ immunocompromised

  1. topical corticosteroids may be used to treat any secondary inflammation of the eye
    Complications
    ocular: conjunctivitis, keratitis, episcleritis, anterior uveitis
    ptosis
    post-herpetic neuralgia

ANTERIOR UVEITIS

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3
Q

Types of cataracts

Subcapsular =
Polar =
Dot =

A

Subcapsular = steroids
Polar = Visual axis
Dot = Diabetes, myotonic dystrophy, normals

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4
Q

Hypertensive retinopathy grading I-IV

Keith-Wagener classification

You have one TORToise, who NIPPS you twice, you need three COTTON WOOL to BLOT the bleeding (haemorrhages), before(be-four) the swelling starts (papilloedema)

A

I- Arteriolar narrowing and tortuosity
Increased light reflex - silver wiring

II- Arteriovenous nipping-

III- Cotton-wool exudates
Flame and blot haemorrhages
These may collect around the fovea resulting in a ‘macular star’

IV-Papilloedema

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5
Q

FROM TRAUMA!!

orbital compartment syndrome - blood in anterior chamber, proptosis (bulge), stuff eyelid, RAPD

A

immediate canthotomy - to decompress ( its a emergency as can loose sight!)

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6
Q

Pain out of proportion
contact lens and recent freshwater swimming

A

acanthamoebic keratitis

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7
Q

fluorescein eye stain shows a DENDRITIC ulcer

A

Herpes simplex keratitis

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8
Q

Flashes and floaters think POSTERIOR VITREOUS DETACHMENT!!!

Retinal detachment is = ‘curtain over vision’, spider webs and flashing lights

A
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9
Q

blepharitis mamagement

A
  1. Hot compress
  2. remove debris
  3. +/- artificial tears
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10
Q

pinhole occluder is useful to identify

A

refractive errors as the cause of blurred vision

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11
Q

autoimmune history, painful red-eye, and BLUE HUE!!

A

scleritis

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12
Q

Horners Syndrome - WHAT DO YOU SEE?!

A
  • miosis (small pupil)
  • Ptosis
  • ENOPHTHALMOS (sunken)
    +/- anhydrosis (on one side)
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13
Q

cotton wool spots represent areas of

A

retinal infarction

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14
Q

Papilloedema

Fundoscopy- what do you see?

causes

A
  • Blurring of optic disc margin
  • elevated disc
  • loss of optic cup

Causes
1. space occupying lesion
2. malignant hypertension
3. ideopathic intercranial hyertension
4. HYDROCEPHALUS (babies big head too much CSF)
5. HYPERCAPNIA (hyperventilation too much!

Rare causes include
hypoparathyroidism and hypocalcaemia
vitamin A toxicity

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