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Opthalmology > Mock Stuff > Flashcards

Flashcards in Mock Stuff Deck (52)
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1

Floaters then grossly reduced vision but painless and no flashing lights - diabetic patient

Vitreous haemorrhage

2

Photokeratitis

Usually after exposure to high levels of UV light
Bilateral severe discomfort

3

Vernal keratoconjunctivitis

Severe chronic allergic conjunctivitis
Symptoms typically worse in spring or summer

4

What is retinitis pigmentosa?

Disease of photoreceptors
Starts with loss of peripheral vision
Can progress to loss of central vision
Retinal pigmentation seen on retina

5

Other causes of retinal pigmentation

Following laser photocoagulation in diabetic retinopathy - multiple discrete round lesions

Macular degeneration (wet and dry) - hypo and hyper pigmentation - this is in macular

6

Pattern of visual loss in open-angle glaucoma

Slow bilateral (often asymmetric) peripheral field loss
Painless
Closed angle is painful

7

Pale fundus with cherry red spot at macula

Central retinal artery occlusion

8

Signs on retina of retinal vein occlusion

Cotton wool spots - ischaemia
Haemorrhage
Swollen optic disc

9

Retinal macroaneurysms

Dilatation of retinal arteriole
Localised haemorrhage and exudation

10

Valsalva retinopathy

Sudden rise in intrathoracic pressure
Retinal haemorrhage alone

11

Amsler grid

Macular disease

12

Duochrome test

Used to fine tune subjective refraction

13

Frisby test

Test for stereopsis

14

Hess chart

Used to measure eye motility

15

Pain or no pain on eye movement with idiopathic intracranial hypertension and space occupying lesions

No pain

16

Pseudophakic

Biological lens replaced with artificial lens

17

Aphakia

Eye with no lens in situ - biological or artificial

18

Anisemetropia

Substantially different refractive power in each eye

19

First medication for primary open-angle glaucoma

Beta blocker - timolol
Or
Prostaglandins - latanotoprost

20

Drusen

Wet and dry macular degeneration

21

Trachoma treatment

Chylmadia therefore azithromycin

22

Sign of endophthalmitis following cataract surgery

Hypopyon- white cells in ant chamber
Will also have reduced vision and very painful red eye

23

Normal non-worrying signs after cataract surgery

Mildly raised IOP
anterior chamber cells
Sub conjunctival haemorrhage

24

Light focused at point before retina

Myopia

25

Light focused behind retina

Hypermetropia

26

Toric lens

Corrects astigmatism

27

Convex lens

Hypermetropia

28

Concave lens

Myopia

29

Intra ocular pressure with ruptured globe

Decreased
Initially increased in blunt trauma and this causes the rupture
Pressure can also be normal

30

Gentamicin with conjunctivitis

More likely to cause ocular irritation and allergy than chloramphenicol