Test 12
1. Schnabel's cavernous optic atrophy: 
a. can be observed clinically in live patients

b. is associated with episodes of acute severe increase
    in intraocular pressure

c. occurs in anterior anterior ischaemic optic neuropathy

d. contains hyaluronic acid

e. contains materials derived from the vitreous

2. In persistent hyperplastic primary vitreous (PHPV): 

a. the inheritance is autosomal recessive

b. microphthalmos is common

c. the lens is reduced in size

d. calcification is common on X-ray

e. phthisis bulbi is common if untreated

3. Ocular features of trisomy 13 include: 

a. optic nerve hypoplasia

b. microphthalmia

c. iris coloboma

d. persistent hyperplastic primary vitreous

e. corneal opacities

4. The following are true about conjunctival papillae:

a. they contain lymphoid tissue

b. they contain small central arteries

c. clinically, they appear as flat top elevations

d. they are seen in viral conjunctivitis 

e. they are seen in bacterial conjunctivitis


5. In central retinal artery occlusion:
a. the occlusion typically occurs near the optic nerve head

b. the most common cause is arteriosclerosis of the retinal 

c. liquifactive infarction of the retinal nerve fibre layer is a 

d. gliosis is a prominent repair mechanism

e. the photoreceptors undergo atrophy 

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