Ophthalmology Flashcards
Drusen aka…
‘amber material under the retinal pigment epithelium in both eyes’
herpes zoster ophthalmicus
Lesion to where means urgent ophthalmological review?
aka…. sign,
Management
eye complication most common
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
- 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
Types of cataracts
Subcapsular =
Polar =
Dot =
Subcapsular = steroids
Polar = Visual axis
Dot = Diabetes, myotonic dystrophy, normals
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)
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
FROM TRAUMA!!
orbital compartment syndrome - blood in anterior chamber, proptosis (bulge), stuff eyelid, RAPD
immediate canthotomy - to decompress ( its a emergency as can loose sight!)
Pain out of proportion
contact lens and recent freshwater swimming
acanthamoebic keratitis
fluorescein eye stain shows a DENDRITIC ulcer
Herpes simplex keratitis
Flashes and floaters think POSTERIOR VITREOUS DETACHMENT!!!
Retinal detachment is = ‘curtain over vision’, spider webs and flashing lights
blepharitis mamagement
- Hot compress
- remove debris
- +/- artificial tears
pinhole occluder is useful to identify
refractive errors as the cause of blurred vision
autoimmune history, painful red-eye, and BLUE HUE!!
scleritis
Horners Syndrome - WHAT DO YOU SEE?!
- miosis (small pupil)
- Ptosis
- ENOPHTHALMOS (sunken)
+/- anhydrosis (on one side)
cotton wool spots represent areas of
retinal infarction
Papilloedema
Fundoscopy- what do you see?
causes
- 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