POST TEST FOR MODULE 40:  Refractive Surgery       Catalog

                                                                   

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1. A significant "undesirable outcome" of the RK procedure is that:

A. astigmatism increases post-operatively

B. best corrected vision is generally not better than 20/50 post-operatively

C. there is a hyperopic shift for many eyes post-operatively

D. there is a myopic shift for many eyes post-operatively

2. During the PRK procedure, the corneal epithelium is removed.

A. True

B. False

3. Which statement is not true about the Lasik procedure?

A. a flap of the cornea is removed before the laser is used

B. the "k" in Lasik stands for "keratomileusis"

C. hyperopia can be treated with Lasik

D. only one eye can be treated at a time

4. Which statement is true of the Lasek procedure?

A. a corneal epithelial flap is created

B. visual recovery is faster than it is for the Lasik procedure

C. corneal incisions are used, similar to the RK procedure

D. the technique was introduced by a Russian doctor

5. The corneal flap in the "Thin-flap Lasik" procedure runs just underneath this layer of the cornea.

A. epithelium

B. Bowman's

C. stroma

D. Descemet's

6. Which statement is true of the IntraLasik procedure?

A. the corneal epithelium is removed with alcohol

B. there is no corneal flap

C. a laser is used to create the flap

D. a microkeratome is used to create the flap

7. Which is not a higher order optical aberration?

A. spherical aberration

B. coma

C. trefoil

D. astigmatism

8. Which is the maximum amount of corneal astigmatism that Intacs corneal implants can successfully treat?

A. less than 1 diopter

B. less than 2 diopters

C. less than 3 diopters

D. less than 4 diopters

9. Conductive Keratoplasty uses ______ to change the shape of the cornea.

A. an excimer laser

B. an argon laser

C. radio waves

D. cosmic rays

10. Limbal relaxing incisions are used to treat:

A. myopia

B. hyperopia

C. astigmatism

D. all of the above

11. Which statement is not true of the Phakic IOL procedure?

A. the natural lens is removed

B. it can be used to treat high myopia

C. it is an intra-ocular procedure

D. the lens can fit in front of the iris

12. Another term used for "Clear Lens Replacement" is:

A. Cataract surgery

B. Myopic Lens Enhancement

C. Refractive Lens Exchange

D. Hyperopic Lens Enhancement

13. Aspheric intra-ocular lenses are used to counteract:

A. regular corneal astigmatism

B. spherical aberrations

C. irregular corneal astigmatism

D. lenticular astigmatism

14. A multi-focal intra-ocular lens may be used to give the patient:

A. better near vision

B. better distance vision

C. less post-operative glare

D. a faster recovery time

15. A Lasik procedure can be used after IOL implantation to adjust the refractive result.

A. True

B. False