1. Which among the following is true for Goldman Applanation tonometer?
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a. Constant force, constant area
b. Variable force, variable area
c. Constant force, variable area
d. Variable force, constant area
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Which of the following is true for Goldman applanation tonometer?
a. Diameter of external area of Corneal applanation is 3.06mm
b. Diameter of external area of Corneal applanation is 7.35mm
c. Internal area of applanation obtained is 7.35mm2
d. Internal area of applanation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. All of the following may result in underestimation of IOP except:
a. Post LASIK
b. Post PRK
c. Corneal edema
d. Corneal scar
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Which among the following statements are correct ?
a. For every 3 diopters (D) of increase in corneal astigmatism power, IOP increases by 1mmHg
b. Orienting the applanation head so the split rings occurred over the flat meridian and then orienting the rings over the steep meridian. The mean of the two pressures produced a reading close to the true intraocular pressure reading
c. Readings can be taken with the tonometer head in the usual horizontal position and then the tonometer head be twisted 90”and another reading be taken. The sum of the horizontal and vertical applanation head readings should be averaged and the average should be considered the IOP.
d. Both a and b are correct
e. All of the above are correct
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. How frequently a Goldman applanation tonometer needs to be calibrated?
a. Every month
b. Every year
c. Once in 3 years
d. Never
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. What is the recommended acceptable range of Calibration error for Goldman applanation tonometer?
a. +/-0.5 mmHg at all 3 levels of testing
b. +/-1 mmHg at all 3 levels of testing
c. +/-2 mmHg at all 3 levels of testing
d. All of the above
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