Duke-Elder multiple choice questions III
1. Causes of corneal neovascularization include:
a. interstitial keratitis
b. amiodarone
c. herpes zoster ophthalmicus
d. trachoma
e. lattice dystrophy

2. Features of blow out fracture include:

a. cheek anaesthesia
b. exophthalmos
c. epiphora
d. orbit depression
e. diplopia

3. Rods:

a. derives from mesoderm
b. are in contact with retina pigment epithelium
c. has a 1:1 ration with the neurones
d. more abundant than cones
e. derives nutrients from retinal vessels

4. Right parietal lobe tumour can cause:

a. left homonymous hemianopia
b. causes altitudinal defect of the left eye only
c. decreases optokinetic nystagmus to one side
d. is a feature of Foster-Kennedy syndrome
e. may cause bilateral optic atrophy

5. The insertion of the inferior oblique is immediately adjacent to:

a. macula 
b. nasolacrimal sac
c. short ciliary arteries
d. optic foramen
e. palpebral portion of the lacrimal gland

6. Cornea:

a. the central corneal thickness is about 0.5 mm
b. the adult diameter is about 14.5 mm
c. endothelium cells continue to divide after birth
d. has a diorite power of about 30 dioptres
e. myopia is associated with increased curvature
7. Causes of bitemporal hemianopia include:
a. acoustic neuroma
b. craniopharyngioma
c. chromophobe adenoma of the pituitary gland
d. optic disc drusen
e. temporal lobe tumour

8. Giant cell arteritis treatment:

a. is determined by ESR
b. involves hypotensive measures
c. needs low dose steroids gradually increase in dose
d. requires positive temporal artery biopsy
e. can cause posterior subcapsular cataract

9. Retinopathy of prematurity:

a. is caused only by oxygen in premature babies
b. in the cicatricial stage can cause dragged optic disc
c. can be treated by cyrotherapy
d. can resolve spontaneously if treated early
e. is associated with myopia

10. Familial tendencies occur in:

a. retinoblastoma
b. sympathetic iritis
c. glaucoma
d. central retinal artery occlusion
e. accommodative esotropia

11. The immediate treatment of a patient with alkaline burn should be:

a. copious irrigation of eye with tap water
b. castor oil
c. oral vitamin C
d. close the eye and rush to eye emergency rapidly
e. start oral steroids
12. Retinal haemorrhages include:
a. anaemia
b. leukaemia
c. neonates after birth
c. septicaemia
e. central retinal artery occlusion

13. Diabetic retinopathy:

a. causes blindness by vitreous haemorrhage
b. causes blindness by retinal detachment
c. is associated with retinal ischaemia
d. is rare in non-insulin dependent diabetes mellitus
e. causes macular oedema

14. In retinoblastoma:

a. autosomal dominant
b. tumour of retina pigment epithelium
c. is radiosensitive
d. usually presents in late childhood
e. is due to deletion of chromosome 13

15. Causes of anterior uveitis:

a. coeliac disease
b. Crohn's disease
c. cystic fibrosis
d. Still's disease
e. psoriasis

16. Tennis ball injury to the eye causes:

a. hyphaema
b. iritis
c. choroidal rupture
d. posterior vitreous detachment
e. lens subluxation

17. Major cause of world blindness:

a. cataract
b. onchocerciasis
c. malaria
d. buphthalmos
e. trachoma

18. The following are autosomal dominant:

a. Leber's optic atrophy
b. rhabdomyosarcoma
c. neurofibromatosis
d. choroidal melanoma
e. lattice dytrophy

19. Causes of retinal neovascularization include:

a. retinitis pigmentosa
b. central retinal artery occlusion
c. central retinal vein occlusion
d. sickle cell anaemia
e. retinopathy of prematurity

20. Congenital nystagmus:

a. is usually vertical
b. is decreased by fixation
c. is abolished with sleep
d. is usually associated with oscillopsia
e. is decreased by convergence. 
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