Ophthalmology Flashcards

1
Q

What is the definition of glaucoma?

A

Optic neuritis secondary to raised intraoccular pressure

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2
Q

What are 3 RF for developing acute angle closure glaucoma?

A

long sited
age
pupillary dilation

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3
Q

What is the pupil like in the acute angle closure glaucoma?

A

Semi dilated and non reacting

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4
Q

How does acute angle closure glaucoma present?

A

severe headache
decreased visual acuity
red eye
worse in a dark room
haloes around lights
N+V

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5
Q

How do you treat Acute angle closure glaucoma?

A

Pilocarpine
BB like timolol
Alpha 2 agonist like bromidine
IV acetazolamide

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6
Q

3 RF for macular degeneration.

A

Age
Smoking
Family History

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7
Q

Is dry or wet macular degeneration more common ?

A

Dry is more common and is seen in 90% of cases.

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8
Q

What is the pathophysiology of wet macular degeneration?

A

Choroidal neovascularisation

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9
Q

How does dry AMD appear on fundoscopy?

A

yellow pigment in the macular

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10
Q

How does wet AMD appear?

A

well-demarcated red patches

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11
Q

What is first and second-line treatment for allergic conjunctivitis?

A

first line: topic antihistamine
second line: systemic antihistamine

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12
Q

What gene is anterior uveitis associated with?

A

HLA B27

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13
Q

What does the uvea consist of?

A

ciliary bodies and iris

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14
Q

What conditions are associated with anterior uveitis ?

A

IBD
Ankylosing spondylitis, sarcoidosis
reactive arthritis

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15
Q

How do you treat anterior uveitis?

A

Steroid eye drops
Cycloplegics (dilate the eye) with atropine

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16
Q

Two conditions associated with argyll robertson pupil?

A

Syphilis
Diabetes

17
Q

What is an argyll robertson pupil?

A

Pupil not responsive to light. but responds to accomodation

18
Q

What is the management of blepharitis ?

A

lid hygeine

19
Q

What happens to colours in cataracts?

A

They become more faded

20
Q

3 symptoms of cataracts

A

colours more faded
haloes around lights
glares from lights
reduced vision

21
Q

What type of cataracts is associated with steroid use?

A

Subscapular

22
Q

What type of cataract is associated with inheritance?

A

Polar

23
Q

What is the most common type of cataracts?

A

Nuclear

24
Q

3 complications of cataract surgery?

A

posterior capsule rupture
retinal detachment
posterior capsule opacification
endophthalmitis

25
Q

What would you see in an eye with a central retinal artery occlusion?

A

Cherry red spot
Pale retina
Afferent pupillary defect

26
Q

What are two indications to treat central retinal vein occlusion?

A

new retinal vessels
macular oedema

27
Q

4 conditions associated with chorioretinitis

A

CMV
Syphilis
Toxoplasmosis
TB

28
Q

What classes as moderate diabetic retinopathy?

A

microaneurysm
blot haemorrhages
cotton wool spots

29
Q

What classes as severe diabetic retinopathy?

A

blot haemorrhages + microaneurysm in all 4 regions.
venous beading in 2 quadrants
IRMA

30
Q

Is proliferative diabetic retinopathy more common in T1 or T2 ?

A

T1

31
Q

Is maculopathy more common in T1 or T2 ?

A

T2

32
Q

How do you treat diabetic maculopathy?

A

anti vEGF injections

33
Q

How do you treat non proliferative retinopathy?

A

laser photocoagulation

34
Q

How do you treat proliferative retinopathy?

A

anti-VEGF injections
Photocoagulation

35
Q

What eye drop can distinguish between episcleritis and scleritis ?

A

phenylephrine drops.
blanches the eye in episcleritis

36
Q

When do you give antibiotics if a patient has a stye?

A

You only give abx when they have associated conjunctivitis