optho Flashcards

(71 cards)

1
Q

what assess for IOP

A

tonometry

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2
Q

alongside eye drops what is used IV for clsoed angle glaucoma

A

acetozoalmide

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3
Q

definitive mx of closed angle glaucoma

A

laser peipheral iridotomoy

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4
Q

fluctuations in vision may vary from day to day in

A

armd

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5
Q

mx of dry MARD

A

zinc with vitamins

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6
Q

photophobia often intense in

A

anterior uveitis

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7
Q

mx of antrior uveitis

A

dilate the pupil eg atropine, cyclopentolate

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8
Q

argyll robertson seen in

A

diabetes and syphillis

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9
Q

symptoms of blepharitis are usually

A

bilateral
grittiness
may be sticky

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10
Q

mx of blepahritis

A

hot compress twice a day
cotton wool buds dipped in a mixture of cooled boiled water and baby shamp00 - to remvoe debris from lid margins

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11
Q

what suggests a refractive error (issue with sight)

A

vision improves when using pinhole occluder

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12
Q

what can see cataracts

A

slit lamp

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13
Q

non surgical mx of cataracts

A

prescribe strogner glasses
encourgae use of brighter lighting

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14
Q

cause of sudden unilateral vision loss

A

CRAO

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15
Q

stromy sunset of fundoscopy

A

CRVO

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16
Q

fluorescein staining done for

A

corneal abrasion

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17
Q

mx of corneal abrasion

A

topical antibiotic - prevent sendaory infection

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18
Q

cotton wool spots are soft exudates that represent areas of reitinal infraction seen in

A

diabetic retinopathy

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19
Q

retinal neovasculrisation in diabetic retinoapthy can lead to

A

vitreous haemorhaeg

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20
Q

alongside VEGF inhibitors what can also be used for proliferative retinopathy in diabetics

A

panretinal laser photcoagualtion

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21
Q

complciation of panretinal photocoagulation

A

decrease in night vision as rods are in peripheral vision

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22
Q

in episcleritis what happends when gentle pressure is appplied to sclera

A

the vessels are mobile
in scelritis vessels are deeper hence do not move

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23
Q

what can differentiate episcelritis from scleritis

A

phenylephrine drops- imporves redness with episcleritis

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24
Q

dfiference between stye and chalazion

A

stye - sore & near eyelid margin
chalazion - not painful and away from eye lid margin

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25
mx of stye
hot compress and analegsia
26
how does herpes simplex keratitis most commonly present
dendrtic corneal ulcer immediate refer to to optho+ topcial aciclovir
27
vesicular rash around eye that extends to tip of nose
shingles - called herpes zoster opthalmicus
28
holmes adie pupil
dilated pupil slow to accomodate and poor response to light syndrome if also got absent ankle/knee reflexes
29
small pupil ptosis (droopy eye) loss of sweating one side
horner syndrome
30
apraclonidine drops does what to horners
dilates horners eye but mildly constricts normal eye
31
in horners just anhidryosis of face
pancoast tumour
32
in horners anhidrysosis of face, arms and trunk
stroke MS syrinomyelia =SSSS
33
horners wih no anhidrysiss
Carotid artery dissection Carotid aneurysm Cavernous sinus thrombosis Cluster headache = CCCCCCC
34
what should not be worn durin an episode of conjuctitis
contact lens
35
topical antibiotic if needed for bacterial conjunctivitis
Chloramphenicol
36
what give instead of chloemaphenciol in preg women
fusidic acid
37
cuase of keratitis in contact lens users
Psedomonas aeruginosa
38
cuase of keratitis if been freshwater swimming
acanthamoebic keratitis - pain out of proportion to clinical findings
39
contact lens users with a painful red eye should get same day assessment to rule out microbial keratitis
40
keratitis mx
stop using contact len until resovled topical wuinolone first line cycloplegic for pain releif
41
most common cause of persistent watery eye in infant is nasolacrimal duct obstruction - mx
massage lacrimal duct refer if not resolved by 1 year old
42
Hyphema (blood in anterior chamber_) in context of trauma - urgent referral
risk of rasied ICP
43
mx of hyphema
strict bed rest - excessive movement can worsen
44
orbital compartmetn syndrome can present with
rock hard eyelids and proptosis
45
features of optic neuritis
- unilateral decrease in visual acuity poor discrimation of colours pain worse on eye movemetn rapd central scotoma
46
ix for optic nerutiris
MRI of brain and orbits with gadolonium contrast
47
differentator of pre septal cellulitis from orbital cellulitis
preseptal does not have pain on eye movement
48
ix for orbital cellulitis
FBC, clinical exam CT with contrast (to assess posterior spread of infection) blod cultures and swab to determine organism - hosital with IV antbitocs
49
features of papillodema
venous engorgement is usually first sign bullring of optic disc margin
50
posterior vitreous detachment mx
does not cause permanent vision loss and symptoms gradually improve over 6 months and so no treatment is necesary however if tehre is an associated retinal tear or detachemnt the pt will require surgery to fix this
51
All patients with suspected vitreous detachment should be examined by an ophthalmologist within 24hours to rule out retinal tears or detachment.
52
presentation of posterior vitresous detachement
floater on temporal side and flashes of light
53
Signs: Weiss ring on ophthalmoscopy (the detachment of the vitreous membrane around the optic nerve to form a ring-shaped floater).
Posterior vitreous detachment
54
what should be done in all pts suspected to have orbital cellulitis
coontrast CT
55
mx of preseptal cellulitis
- secondary care oral antibiotics
56
first line mx for open anagle glaucoma
360 degree selective laser trabeculplasty
57
is eye drops or 360 laser trabeculoplassty first line for open angle glaucoma
360 laser trabaculplasty
58
imporant symptom to remeber for open angle glaucoma
peripheral visual field loss (tunnel vision)
59
optic disc upping >0.7 is
abnormal
60
RAPD
eyes dilate when light is shown on affected eye
61
caues of RAPD
retinal detachemnt optic neuritis
62
why do you get flashes and flaoters in retinal detachment
retina attaches to pigment epithelium so when comes away pigment cells enter the vitreous space on traction
63
what also get in retinal detachemnt
curtain or shadow progressing to centre
64
night blindness and tunnel vision
retinitis pigementosa
65
most common occular manifestation in RA
keratoconjucitivits sicca
66
scleritis tends to be non infective so treated with
NSAIDs but still need same day assement by opthamologist
67
failure to correct squint leads to
amblyopia
68
detect squint
light over puils and see if is symmetrical on pupils cover test too refer to secondary care and may be given eye patches
69
4 causes of sudden painless loss of vision
CRAO/CRVO vitreous haemorrhage retinal detachemnt retinal migraine
70
common cause of vitreous haemorrhage
diaebets
71