MCQ Series 62 : optometry and Ophthalmogy MCQ test series
1. Bausch and Lamb keratometer works on the principle of
3. Scheiner's principle is used in
5. False about Jacksons cross cylinder
1. Bausch and Lamb keratometer works on the principle of
A. Variable image size and variable object size
B. Variable object size and constant image size
C. Constant object size and variable image size
D. Constant object size and constant image size
2. The maximum power of cylinder in an usual trial
set is
A. 9 dioptre
B. 4 dioptre
C. 5 dioptre
D.6 dioptre
3. Scheiner's principle is used in
A.Keratometry
B. Phoropter
C.Autorefractometer
D.Streak retinoscopy
4. Which is not true about the Duochrome test?
A.It is based on chromatic aberration
B.It is a subjective method of refraction
C.Red and green goggles are necessary
D.The normal human eye is myopic for blue color
5. False about Jacksons cross cylinder
A. It is used to check the accuracy of axis and power
of cylinder
B.The principle of oblique cylinders is used to check the axis
C.The cylindrical power is half the power of the sphere
D.The handle is set at an angle of 45 degree from the axis
6.Rigid intraocular lens is made up of
A. Acrylic
B.PMMA
C. Silicon
D. Hydrogel
7. SRK formula is
7. SRK formula is
A.PA-2.5L-0.9 K
B.PA +2.5 L + 0.9 K
C.PA+0.9 K - 2.5 K
D.PA-0.9 K - 2.5 L K-2
8. Synoptophore is used to
A.Measure objective and subjective angles of squint
B.Assess degrees of binocular single vision
C.All of the above
D. None of the above
9. Following are limitations of aphakic glasses except
A.Roving ring scotoma
B. Image magnification by 30%
C. Accommodation is present
D. Spherical aberration produces pin cushion effect
10. Pupilometer is used to
10. Pupilometer is used to
A.Check inter pupillary distance
B.Pupil reaction
C. Relative afferent pupillary defect
D.Pupil size
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