Name: Score:
38 Multiple choice questions
Term 1 of 38
Which of the following statements regarding absolute light detection threshold under scotopic
conditions is INCORRECT?
two sub-threshold flashes of white light separated by 60ms are more likely to be detected
by the photopic system than the scoptopic system
1 photon absorption is sufficient to stimulate one rod cell
a stimulus of 507nm wavelength will be detectable at lower intensity than a stimulus of
600nm wavelength
photopic system will demonstrate a lower threshold for light detection than the scotopic
system for wavelengths longer than 650nm
Term 2 of 38
Which nerve would NOT be affected by a space-occupying tumor located within the muscle
cone?
superior division CN3
inferior division CN3
nasociliary nerve
trochlear nerve
,Term 3 of 38
Which of the following topical ophthalmic medications inhibit DNA synthesis?
trimethoprim
azithromycin
tobramycin
moxifoxacin
Term 4 of 38
What 2 blood vessels supply the brain?
basal cell carcinoma
low results indicating no lead or lag
atropine
least likely to cross blood brain barrier
-vertebral
-internal carotid
Term 5 of 38
Where are cell bodies of sympathetic preganglionc neurons located?
peripheral ganglia located near the target organs
the brainstem and cranial nerve nuclei
thoracic and lumbar segments of the spinal cord
cervical and sacral regions of the spinal cord
, Term 6 of 38
How do reduce color fringes in periphery of trivex lenses?
no but tetracycline does
-switch to CR39
-induce panto
-decrease vertex distance
atropine
least likely to cross blood brain barrier
thoracic and lumbar segments of the spinal cord
Term 7 of 38
What type of amblyopia is associated with a suppression scotoma?
no but tetracycline does
tonic and proximal
pars plicata
produces aq humor
stabismic
Term 8 of 38
The critical period of visual development extends from:
2-9 years
7-9 years
birth - 2 years
birth - 9 years
38 Multiple choice questions
Term 1 of 38
Which of the following statements regarding absolute light detection threshold under scotopic
conditions is INCORRECT?
two sub-threshold flashes of white light separated by 60ms are more likely to be detected
by the photopic system than the scoptopic system
1 photon absorption is sufficient to stimulate one rod cell
a stimulus of 507nm wavelength will be detectable at lower intensity than a stimulus of
600nm wavelength
photopic system will demonstrate a lower threshold for light detection than the scotopic
system for wavelengths longer than 650nm
Term 2 of 38
Which nerve would NOT be affected by a space-occupying tumor located within the muscle
cone?
superior division CN3
inferior division CN3
nasociliary nerve
trochlear nerve
,Term 3 of 38
Which of the following topical ophthalmic medications inhibit DNA synthesis?
trimethoprim
azithromycin
tobramycin
moxifoxacin
Term 4 of 38
What 2 blood vessels supply the brain?
basal cell carcinoma
low results indicating no lead or lag
atropine
least likely to cross blood brain barrier
-vertebral
-internal carotid
Term 5 of 38
Where are cell bodies of sympathetic preganglionc neurons located?
peripheral ganglia located near the target organs
the brainstem and cranial nerve nuclei
thoracic and lumbar segments of the spinal cord
cervical and sacral regions of the spinal cord
, Term 6 of 38
How do reduce color fringes in periphery of trivex lenses?
no but tetracycline does
-switch to CR39
-induce panto
-decrease vertex distance
atropine
least likely to cross blood brain barrier
thoracic and lumbar segments of the spinal cord
Term 7 of 38
What type of amblyopia is associated with a suppression scotoma?
no but tetracycline does
tonic and proximal
pars plicata
produces aq humor
stabismic
Term 8 of 38
The critical period of visual development extends from:
2-9 years
7-9 years
birth - 2 years
birth - 9 years
