CS/B.OPTM/SEM-4/BO-402/2013
2013
OPHTHALMIC & OPTICAL INSTRUMENTATION &
PROCEDURE – II
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following :
10x1 = 10
i) Applanation tonometry is based on
a) Pascal’s Law b) Imbert-Ficks Law
c) Hering’s Law d) None of these.
ii) Absence of green sensitivity of retina is called
a) Deuteranopia b) Protanopia
c) Tritanopia d) none of these.
iii) Errors may occur during applanation tonometry due to
a) irregular Cornea
b) excess fluorescein
c) faulty calibration of instrument
d) scleral rigidity.
iv) In Humphrey autoperimetry the unit of illumination is
a) apostilibs
b) candles
c) decibels
d) lumen.
v) All are true of Schiotz tonometry except
a) indentation of cornea
b) normogram necessary
c) topical anaesthesia needed
d) more reliable than applanation tonometry.