1. Abnormal colour vision may
be in patients on treatment with:
a. digitalis
b. chloroquine
c. gold
d. indomethacin
e. isoniazid
2. Autosomal dominant inheritance
is seen in:
a. homocystinuria
b. Marfan's syndrome
c. Fabry's disease
d. dystrophia myotonica
e. Best's macular dystrophy
3. Xlinked inheritance is seen
in:
a. tritanopia
b. deuternomaly
c. oculocutaneous albinsim
d. choroideremia
e. histiocytosis X
4. The refractive index of the
following exceed that of the cornea:
a. crystalline lens cortex
b. crystalline lens nucleus
c. aqueous humour
d. vitreous humour
e. crown glass
5. Light:
a. may be absorbed by the normal
human lens
b. rays may be deviated by collagen
fibres of the cornea
c. composed of waves exactly in
phase is termed polarized
d. of one pure wavelength is termed
collimated
e. diffraction is caused by the
cornea
6. The following statements about
standard deviation are true:
a. standard deviation of sample
is the same as population standard deviation
b. standard deviation equals the
square of the variance
c. 95% of observations lie within
one standard deviation of the mean
d. the standard deviation depends
on the number of observations
e. the standard deviation always
has a positive value
7. The following are true:
a. the larger the sample size, the
greater the standard error
b. a value of p<0.01 is less
significant than p>.01
c. data which is nonparametric
is assumed to be normally distributed
d. in a ttest, the null hypothesis
is assumed in all cases
e. in a normal distribution, the
mean, mode and median are equal in value.
8. In the chi squared test:
a. the value of chisquare may be
negative
b. the higher the chisquare value,
the greater the significance
c. the null hypothesis is assumed
in all cases
d. the difference between observed
and expected frequencies is measured
e. p<0.05 is conventionally accepted
as significance
9. The following are true about
neurofibromatosis:
a. it is an autosomal dominant condition
b. auxillary freckles are pathognomonic
c. pulsatile proptosis is a feature
d. iris nodules called Lisch's nodules
are composed of naevi
e. cafe au lait spot may be the
only sign
10. Oculocardiac reflex:
a. occurs at any age
b. manifests as tachycardiac and
high blood pressure
c. is a response to extraocular
muscle traction
d. the efferent pathway is via third
nerve
e. premedication with atropine can
abolish the reflex
