2020–2021 BCSC Basic and Clinical Science Course™
11 Lens and Cataract
Chapter 7: Preoperative Considerations for Cataract Surgery
This chapter includes a related video. Go to www.aao.org/bcscvideo_section11 or scan the QR code in the text to access this content.
Highlights
-
When choosing the power of the intraocular lens (IOL) for a cataract surgery, important considerations include axial length, anterior and posterior cornea power, and effective lens position.
-
Informed consent is important; it includes the indications for surgery, the surgery’s potential risks and benefits, any alternatives to the surgery, the surgical technique, and the IOL options.
-
Recent studies have demonstrated that optical coherence tomography (OCT)–based IOL calculations and the Haigis-L and Barrett True-K No History formulas offer the lowest rate of error for postrefractive surgery IOL calculations. Intraoperative aberrometry has been shown to have similar accuracy.
-
The Hill-RBF method for calculating IOL is unique because it uses adaptive learning to update its database and continually improve its IOL power predictions.
-
Antimicrobial prophylaxis with intracameral antibiotics has been shown to reduce the rate of endophthalmitis.
Excerpted from BCSC 2020-2021 series: Section 11 - Lens and Cataract. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.