Test 26  (neuro-ophthalmology) 
1. The following are features of melanoma-associated retinopathy:
a. central scotoma

b. night vision impairment 

c. abnormal electroretinogram

d. antibody to rods

e. presence of distant skin melanoma rather than 
    choroidal melanoma

2. Features of cancer-associated retinopathy include:

a. narrowing of the retinal artery

b. abnormal electroretinogram

c. stationary bilateral visual loss

d. optic atrophy

e. the most common underlying cause is breast carcinoma

3. In Leber's hereditary optic neuropathy:

a. visual recovery is usually poor

b. peripapillary telangiectasia is a late feature of 
    the disease

c. 14484 mutation at the mitochondria is associated 
    with a better visual prognosis

d. 17788 mutation is the most common mitochondrial
    mutation seen in this condition

e. only male patients are affected.

4. The following are true about ocular myasthenia gravis:

a. thymomectomy is usually performed to improve 
    the ocular signs

b. application of ice to a ptotic eye may worsen the 

c. the majority of myasthenic patients have ocular 

d. squint operation should never be carried out on 
    myasthenic patients

e. single fibre electromyography of the orbicularis 
    oculi may show increased jitter

5. True statements about non-arteritic ischaemic optic neuropathy 

a. more common in males than females

b. headache is not a feature

c. it is associated with an increased incidence of      
    hypertension and diabetes mellitus

d. optic nerve fenestration is beneficial

e. aspirin can improve the visual prognosis of the affected 

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