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Recently published Focal Points issue accessible online

Focal Points 2013 Module: IOL Power Calculation in Patients With Prior Corneal Refractive Surgery

Focal Points 2013 Module: IOL Power Calculation in Patients With Prior Corneal Refractive Surgery

CME Credit
  • Up to 2.0 credits of General CME

Product Number: 0202063V

Media Type: eBook, Online

Availability: In stock

Laser-assisted in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) for the correction of near-sightedness represent the majority of refractive surgeries. Some of these patients will develop cataracts, and will likely expect excellent uncorrected visual acuity following cataract surgery, as they experienced after LASIK or PRK.

Early experience with eyes that had undergone myopic LASIK or PRK has shown that refractive predictability after cataract surgery is relatively poor. Errors in the calculation of corneal power and in estimated lens position are often introduced when intraocular lens (IOL) power calculation is performed on post–LASIK/PRK eyes.

This Focal Points issue concentrates on the changes that occur after myopic LASIK and how to correct for them in lens power calculations. PRK causes similar changes to the cornea and requires identical correction. A much smaller number of patients present for cataract surgery after a hyperopic LASIK, or after an old radial keratotomy (RK). These cases will also be discussed.

Upon completion of this Focal Points issue, you should be able to:

  • Evaluate preoperatively the patient with prior corneal refractive surgery
  • Demonstrate understanding of the differences in IOL calculation in patients with prior myopic LASIK/PRK, hyperopic LASIK/PRK, and radial keratotomy
  • Apply the most appropriate IOL power formulas and corneal power correction equations to obtain the best postoperative result

Focal Points issues are practical, hands-on discussions of the clinical challenges you face daily. Each issue delivers high-quality, trusted ophthalmic information written and reviewed by leading experts.

Subscribers receive 12 new issues a year, plus access to the Focal Points digital archive.

To access this issue from your laptop or desktop computer, log in to www.aao.org/myonlineproducts with your Academy username and password. To access this issue from your Apple iPad® or Android™ tablet, use the free AAO eBooks app. For more information about the app, visit www.aao.org/ebooks.



CME Credit
The American Academy of Ophthalmology designates this enduring material for a maximum of 2 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

Once you have completed this Focal Points issue, please visit CME Central to review or claim your CME.