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Athens 2016: Refractive Surgery Didactic Course (Part 1) - Multiple Choice Questions
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1.
Name and/or Badge ID Number:
(Required.)
D. Siganos
Patient selection and preoperative preparation
2.
Following LASIK, which is true?
Goldmann applanation tonometry measurements overestimate IOP
Goldmann applanation tonometry measurements underestimate IOP
Goldmann applanation tonometry measurements are not affected
Goldmann applanation tonometry is unrelaible
3.
Accurate tonometry readings following LASIK can be obtained by:
Goldmann applanation tonometry
Air puff tonometry
Pascal tonometry
Ultrasonic pachymetry
All of the above
None of the above
G. Kymionis
Lasers in refractive surgery
4.
The depth of ablation for an excimer laser is related with the?
Optical zone
Fluence of the laser
Ablation rate
5.
In excimer laser ablation of the cornea, the thermal stress depends on:
Fluence
Effective repetition rate
Total ablation
All of the above
C. Roberts
Corneal topography and IOL power calculation
6.
When trying to correlate changes in refraction and changes in topography, which map would be the most helpful:
Refractive power map
Axial power map
Local radius of curvature map
Aspheric difference map
7.
Small details such as central islands, mild surface irregularities are best seen on:
Refractive power map
Axial power map
Local radius of curvature map (tangential map)
Aspheric difference map
8.
Which is the most accurate reference for an elevation map:
Plane
Best-fit sphere
Asphere
None of the above
R. Bellucci
LASIK: surgical technique
9.
The diameter of the flap is affected by:
The corneal curvature
The corneal diameter
Both curvature and diameter
Neither curvature nor diameter
10.
After the cut, the flap is “taco” folded for:
Better late repositioning
Protection of the hinge from ablation
Lower bacterial contamination
Lower dehydratation
J. Hjortdal
Surface ablation techniques
11.
Which of the following is not a risk factor for post surface ablation haze?
Myopia greater than 6 diopters
Young patients
Delayed closure of the epithelial defect
The use of non steroidal anti inflammatory drugs
12.
Which of the following patients is not an ideal candidate for surface ablation?
Previous corneal transplant
Previous aborted LASIK due to buttonhole flap
Previous conductive keratoplasty
Diagnosis of form fruste keratoconus
D. Epstein
Results of corneal refractive surgery
13.
For which of the following ranges of myopia can the best outcomes be expected in LASIK?
–5.00D to –7.50D
–1.50D to –5.00D
–8.00D to –10.50D
–6.00D to –8.00D
14.
Based on published and clinical experience, one would anticipate the worst outcome when performing
hyperopic LASIK on an eye with the following preoperative refraction:
+1.50D
+3.25D
+5.50D
+3.75D