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30 Optometry MCQ with Answer





1. The excimer laser is used in
a) LASIK
b) LASEK
c) PRK
d) All

2. IOL Master uses the principle of
a) Ultrasound
b) Coherence Interferometry
c) Linear Polarization
d) Fraunhofer Diffraction

3. Power of Prism mostly depends upon
a)  Media in which it is kept
b) Angle
c) Thickness
d)  All

4. The correct one about Stenopic slit is
a) Used to assess the site for optical PI in corneal opacity
b) Works on the principle of Prism
c) The rays of light are limited on the meridian perpendicular to the axis of slit
d) All

5. World Sight Day is celebrated on:
a) 2nd Thursday of October each year
b) 2nd Thursday of October alternate year
c) 2nd Wednesday of October each year
d) 2nd Wednesday of October alternate year

6. Human Crystalline lens develops from
a) Neuro-ectoderm
b) Surface ectoderm
c) Mesenchyme
d) Mesoderm
         
7. The latest version of the disease classification system developed by WHO is
a) ICD-8
b) ICD-9
c) ICD-10
d) ICD-11

8. The longest part of the optic nerve is
a) Intra-ocular
b) Intra-orbital
c) Intra-cranial
d) Intra-canalicular

9. Which of the following is true about cortical blindness except
a) Pupillary Light Reflex is intact
b) Funduscopy reveals normal finding
c) VEP can be used as an accurate diagnostic test
d) Afferent pathway not affected

10. The onset of presbyopia depends upon all except
a) Refractive error
b) Pupil size
c) Ciliary tone
d) AC Depth

11. The co-efficient of correlation lies between
a) 0 to 1
b)-1 to 0
c) +1 to -1
d)+0.5 to -0.5

12. In axial myopia
a) Posterior staphyloma is associated
b) Rays of light focused beyond retina
c) No risk of progressive retinal degeneration
d) Yielding of the elastic membrane of the sclera

 13.  ERG b-wave amplitude is reduced in
a) Oguchi’s Disease
b) Punctata Albicans
c) Diabetic
d) Optic Atrophy

 14.  Gender (male/female) is which entity?
a) Nominal
b) Ordinal
c) Cardinal
d) Interval

   15.  IOL power is increased if
a) Corneal curvature increases and axial length is increases
b) Corneal curvature increases and axial length decreases
c) Corneal curvature decreases and axial length decreases
d) Corneal curvature decreases and axial length increases

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16.  Contrast sensitivity peaks at

a)  2 cycles/degree
b) 3 cycles/degree
c) 3.5 cycles/degree
d) 4 cycles/degree

17.  Which of the following is a parametric test?
a) Chi-square test
b) The Kruskal Wallis test
c) Wilcoxon Signed Rank test
d) t-test

18.  Prism produces……………image
a) Erect
b) Laterally inverted
c) Virtual
d)Shifted towards its base

 19.  The change in stimuli perception from scotopic vision condition to photopic vision condition is best explained by
a)Purkinje Shift
b) Photochromatic interval
c) Visual adaptation
d) Biphasic threshold


 20.  A case of Retinitis Pigmentosa might be best benefitted by
a) Field expanding channel lenses
b) Corning Photochromatic Filters
c)Telemicroscope
d)  CCTV

 21.  Blue end of visible light causes
a)Photoophthalmia
b)Maculopathy
c) Corneal burns
d) Xanthelasma


 22.  The prism used in the slit lamp to make the inverted image erect is
a) Internal doubling prism
b)Porro Abbe prism
c)Integrated Fresnel Prism
d)Reflective polyhedral prism

23.  Choose the wrong about the range of wavelength
a) UVC 220-280 nm
b) UVB 280-315
c) UVA 315-400 nm
d) IR A 780-3000 nm

24.  Public health does not deal with………..care
a)Promotive
b)Rehabilitative
c) Curative
d) Preventive

 25.  One is regarded as Basement’s membrane
a) Bowman’s layer
b) Stroma
c)  Descement’s membrane
d) Retinal pigment epithelium

 26.  The contact lens seems loose and rides high while blinking on slit lamp examination. With the diameter constant, altering which of the following parameters do we obtain an optimal fit?
a) Lens thickness increase
b)  BOZR decrease
c)  Peripheral optic zone decrease
d) Oxygen permeability increase

 27.  The image formed by reflection of light
a) Dioptric
b) Catoptric
c) Rectilinear
d)  Both b and c

28. Of the four Purkinje-Sanson’s image, which one is inverted?
a)  P1
b) P2
c) P3
d) P4

29.  In orbital trauma the bone most likely to be damaged is
a) Lateral Zygomatic
b) Orbital floor of maxillary
c) Nasal
d) Ethmoid

30.  Diplopia is permitted in
a) If the retinal disparity is not within Panum’s Fusional area
b) ARC
c) Eccentric fixation
d) All

Answer: 
1 d
2 b
3 b
4 d
5 a
6 b
7 d
8 b
9 c
10 d
11 c
12 a
13 c
14 a
15 c
16 d
17 d
18 a
19 b
20 b
21 b
22 b
23 d
24 c
25 a
26 b
27 b
28 d
29 b
30 a

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