Free Oklahoma Optometry Laser Written and Practical Exams Practice Questions

Sample Practice Questions

Try these 10 sample questions from the Oklahoma Optometry Laser Written and Practical Exams practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1In the laser designation Nd:YAG used for posterior capsulotomy, what does YAG identify?

   1. A. Yttrium aluminum garnet
   2. B. Yttrium iron garnet
   3. C. Gadolinium gallium garnet
   4. D. Gadolinium scandium gallium garnet

   Answer: A

   Explanation: The NCBI review expands the term as "Neodymium:yttrium-aluminum-garnet (Nd:YAG)."

   Reference: An Overview of Nd:YAG Laser Capsulotomy - PMC — Introduction, first paragraph

2. 2Which examination remains the gold standard for assessing anterior chamber angle anatomy and angle-closure risk?

   1. A. Indentation gonioscopy
   2. B. Ultrasound biomicroscopy
   3. C. Anterior-segment optical coherence tomography
   4. D. Scheimpflug imaging

   Answer: A

   Explanation: The NCBI review states, "Gonioscopy is the gold standard method for clinically assessing the anterior chamber angle." Indentation is the dynamic gonioscopic method used to assess appositional closure.

   Reference: Optical coherence tomography in anterior segment imaging - PMC — Introduction, anterior chamber angle assessment

3. 3Which postoperative lens finding is the most common delayed complication of cataract surgery?

   1. A. Posterior capsule opacification
   2. B. Intraocular-lens dislocation
   3. C. Cystoid macular edema
   4. D. Retinal detachment

   Answer: A

   Explanation: The NCBI review states, "Posterior capsule opacification (PCO) is the most common delayed complication of cataract surgery."

   Reference: An Overview of Nd:YAG Laser Capsulotomy - PMC — Introduction, first paragraph

4. 4Before an Oklahoma optometrist performs a laser surgery procedure, what credential must the optometrist obtain?

   1. A. Certification by the Oklahoma Board of Examiners in Optometry
   2. B. Registration by the Oklahoma Board of Pharmacy
   3. C. Certification by the Oklahoma Medical Board
   4. D. A permit from the Oklahoma State Department of Health

   Answer: A

   Explanation: 59 O.S. § 581(D) states, "Optometrists shall be certified by the Board of Examiners in Optometry prior to ... performing laser or nonlaser surgery procedures."

   Reference: Sections 581 to 582 — 59 O.S. Section 581(D)

5. 5Which laser type is used for selective laser trabeculoplasty?

   1. A. Q-switched Nd:YAG
   2. B. Continuous-wave argon
   3. C. Excimer
   4. D. Diode cyclophotocoagulation

   Answer: A

   Explanation: The NCBI clinical review states, "SLT uses a frequency doubled, q-switched Nd:YAG laser."

   Reference: Selective Laser Trabeculoplasty: A Clinical Review - PMC — Clinical Technique

6. 6Which trabecular cells does selective laser trabeculoplasty preferentially target?

   1. A. Pigmented trabecular meshwork cells
   2. B. Nonpigmented corneal endothelial cells
   3. C. Lens epithelial cells
   4. D. Retinal pigment epithelial cells

   Answer: A

   Explanation: The NCBI review describes "selective targeting of the pigmented TM cells" while sparing neighboring cells.

   Reference: Selective Laser Trabeculoplasty: An Overview - PMC — Mechanism of Action of SLT

7. 7Which feature of posterior capsule opacification can increase the laser energy required for Nd:YAG capsulotomy?

   1. A. A fibrous or fibromembranous capsule
   2. B. A blue-light-filtering lens tint
   3. C. A shallow anterior chamber alone
   4. D. A small corneal diameter

   Answer: A

   Explanation: The NCBI study found that "total laser energy levels were significantly higher" with fibromembranous and fibrous PCO subtypes.

   Reference: Neodymium-Yttrium Aluminium Garnet Laser Capsulotomy Energy Levels for Posterior Capsule Opacification - PMC — Abstract, Results

8. 8How can a larger Nd:YAG capsulotomy opening affect an implanted intraocular lens?

   1. A. It can cause greater backward lens movement
   2. B. It permanently increases lens power
   3. C. It seals the lens to the capsule
   4. D. It eliminates all refractive change

   Answer: A

   Explanation: For the IOL, the NCBI review reports that "larger capsulotomy openings induce greater backward movement" and recommends smaller openings.

   Reference: An Overview of Nd:YAG Laser Capsulotomy - PMC — Complications, IOL Movement and Refractive Changes

9. 9Compared with argon laser trabeculoplasty, what structural effect is associated with SLT?

   1. A. Less structural damage to the trabecular meshwork
   2. B. More thermal coagulation of the ciliary body
   3. C. Greater photodisruption of the posterior capsule
   4. D. Deeper ablation of the corneal stroma

   Answer: A

   Explanation: The NCBI review reports "less coagulative damage after SLT and less structural change of the meshwork."

   Reference: Selective Laser Trabeculoplasty: An Overview - PMC — Mechanism of Action of SLT

10. 10Nd:YAG laser capsulotomy became an effective alternative to which older treatment for posterior capsule opacification?

    1. A. Surgical discission
    2. B. Trabeculectomy
    3. C. Corneal cross-linking
    4. D. Pars plana vitrectomy

    Answer: A

    Explanation: The NCBI review calls Nd:YAG capsulotomy "an effective alternative to surgical discission."

    Reference: An Overview of Nd:YAG Laser Capsulotomy - PMC — Introduction, first paragraph