Duke-Elder multiple choice questions VI
1. Conditions and its vision loss association:
a. nasal step & glaucoma
b. giant cell & altitudinal field loss
c. bitemporal quadrantonopia & tilted optic discs
d. right homonymous hemianopia & left occipital lobe lesion
e. increased blind spot & papilloedema

2. Retinal detachment occurs in:

a. central serous retinopathy/chorioretinopathy
b. toxoplasmosis
c. choroidal melanoma 
d. proliferative diabetic retinopathy with disc new vessel
e. hypotony
3. Retinal rods:
a. originate from mesoderm
b. are responsible for 'b' wave in ERG
c. are supplied by central retinal artery
d. are more numerous in number than cones
e. are more light sensitive than cones

4. Ammonia injury of the eye:

a. should be irrigated with weak acid
b. can lead to ocular perforation if topical steroid is overused
c. should be treated with antibiotic
d. the prognosis is worse if eye is injected
e. high dose oral steroid helpful in preserving vision

5. Ptosis can result from:

a. myasthenia gravis
b. lesion of the pulmonary apex
c. sympathectomy for Raynaud's disease
d. damage to the ciliary ganglion
e. facial nerve palsy

6. Lenticular abnormalities are seen in:

a. marfan's syndrome
b. galactosaemia
c. cystinosis
d. amyloid
e.  myotonic dystrophy

7. Scleritis:

a. is normally painless
b. is common in rheumatoid arthritis
c. if narcotizing, is associated with spontaneous globe perforation
d. can be treated with topical steroid
e. may be complicated by retinal detachment

8. The lens:

a. is completely surrounded by a layer of cuboidal cells underneath the capsule
b. becomes more spherical during accommodation
c. is derived from the mesoderm
d. provides most of the ocular refractive power
e. power increases with nuclear sclerosis
9. The advantages of phacoemulsification over extracapsular cataract surgery include:
a. faster recovery
b. less astigmatism
c. easier to learn
d. less corneal oedema
e. better for very dense cataract

10. The following conditions are associated with calcification:

a. retinoblastoma
b. toxocariasis
c. choroidal osteoma
d. choroidal melanoma
e. retinal astrocytoma
More past Duke-Elder MCQs