Self-Assessment Exam

1. Approximately what percentage of adult hyperopes require corrections of 3.00 D or less?
   a. 40
   b. 60
   c. 80
   d. 100
   
   
2. Thermal modification of corneal collagen occurs when the tissue reaches a critical range of:
   a. 10 to 27 ° C
   b. 23 to 40 ° C
   c. 35 to 52 ° C
   d. 58 to 75 ° C
   
   
3. Which of the following advantage is true in LTK?
   a. LTK is non-invasive..
   b. There is less risk of loss of bets corrected visual acuity with LTK.
   c. The structural integrity of the cornea is not comprised in LTK.
   d. All of the above.
   
   
4. After LTK, what percentage of patients used correction for certain tasks:
   a. 17 percent
   b. 4 percent
   c. 21 percent
   d. 92 percent
   
   
5. Ideal candidates for LTK are patients with:
   a. Refractive errors between +0.75 D to +2.50 D
   b. Higher hyperopes at >2.00 D
   b. Manifest refraction with more than 1.00 D of cylinder
   b. Under the age of 40
   
   
6. Candidates who should be excluded for LTK are patients with:
   a. Keratoconus
   b. Herpetic keratitis
   c. Corneal dystrophies
   d. All of the above
   
   
7. In LTK, the surgeon delivers the laser two times at diameters of:
   a. 8mm then 7mm
   b. 7mm then 6mm
   c. 6mm then 7mm
   d. 7mm then 8mm
   
   
8. After LTK, deep corneal striae that connect treatment sites are visible up to:
   a. 1 week
   b. 3 weeks
   c. 1 month
   d. 3 months
   
   
9. Most hyperopic LASIK patients will experience a myopic overcorrection resulting in:
   a. A. Good near vision but blurry distance correction
   b. Good near vision and good distance correction
   c. Poor near vision but good distance correction
   d. Poor near vision and poor distance correction