1. Regarding visual evoked potential:
a. it is a type of electroencephalogram
b. the latency of flash VEP correlates with visual acuity
c. the amplitude of pattern-flash VEP correlates with
visual acuity
d. the amplitude of VEP varies directly with the strength
of the stimulus
e. the wave pattern of flash VEP shows little variability
between individual
2. The ciliary body:
a. receives 7% of total ocular blood flow
b. contains pigmented ciliary epithelial cells that are
responsible for aqueous secretion
c. receives parasympathetic nerve supply via the long
ciliary nerves
d. contracts during accommodation
e. is the main source of anti-oxidant systems in the
anterior chamber
3. Phototransduction:
a. occurs in pineal gland
b. involves the conversion of light energy into electrical
energy
c. involves capturing of the photons by the inner
membrane of the photoreceptors
d. requires a minimum of 10 photons to become activated
e. involves the isomerization of 11-cis retinal to all trans
retinal
4. The following are associated with optic neuritis:
a. Uhthoff's phenomenon
b. Aubert's phenomenon
c. Pulfrich's phenomenon
d. Troller's phenomenon
e. Raynaud's phenomenon
5. The following are true about electroretinogram :
a. a1 wave originates in rods
b. a2 wave originates in cones
c. b wave originates in bipolar cells
d. amacrine cells generate the oscillatory potentials
e. b wave is absent in central retinal vein occlusion.