EyeWorld Korea December 2025 Issue

Zeiss Supplement Transforming Ev ery Stage of Cataract Surgery with AI and Advanced Technologies Supplement to EyeWorld Asia-Pacific December 2025 SUPPLEMENT

the largest optic-haptic junction surface area and volume com pared to four other hydrophobic lenses. In a separate cohort of data on the CT LUCIA IOL, the anterior chamber depth (ACD) was measured to determine the stability of the implanted IOL at two postoperative visits (one week and one month after surgery), and pseudophakic ACD measurements remained stable at one month after implantation. As for the delivery system, the AT ELANA comes fully preloaded in a BLUESERT™ injector. “I found it very easy to use,” Prof. Hyon said. “This is a push-type injector. Some surgeons may prefer the screw-type injector, but I found it very easy to inject the IOL.” The heparin coating of the IOL also contributes to the safe and predict able performance of the injection. Based on survey results, 99% of surgeons reported that they “agree” or “fully agree” with the ease of use with the BLUESERT™ injector. 3 When using the BLUESERT™ injector, the surgeon should make sure the lens is secured and centered in the IOL chamber before covering the entire IOL with a generous amount of viscoelastic. When the surgeon is ready to implant the IOL, he or she should gently push the plunger forward until a “click” is heard. The lens can then be slowly advanced until it has been released from the injector and carefully placed in the capsular bag. “Sometimes, the trailing haptic is not fully released from the cartridge,” Prof. Hyon explained. “You may apply additional force to release it.” There are different recommended sizes of injectors for different di opter ranges when using the BLUESERT™ injector. For example, the 2.2 injector would be used for a diopter range of 0.0 D to +24.0 D while a 2.4 injector would be used for a diopter range of +24.5 D to +30.0 D. From Prof. Hyon’s own clinical experience implanting 39 patients with AT ELANA (mean age of 62.4 years), he found that visual acuity at one month after surgery was excellent for near, intermedi ate, and distance vision. Prof. Hyon also determined that the Kane, Barrett, and Haigis equations performed better than the Hoffer Q and SRK-T equations when performing refractive prediction. In one case, Prof. Hyon implanted a 6.0 D AT ELANA IOL in a 56-year-old female with high myopia, a soft contact lens intoler ance, and a mild cataract. “With a premium IOL, I am very careful, and I make a very good circular continuous curvilinear capsulor rhexis (CCC) with good centration,” he said. One month after the surgery, the patient experienced very little refractive error and very good near, intermediate, and distance vision. “The AT ELANA has a very low refractive index when compared to other lenses on the market,” Prof. Hyon noted. “It will be a little thicker than other IOLs, but it provides better visual quality and less dysphotopic symptoms, meaning you can have more precise control with the IOL power. I have very strong confidence in the optical performance and visual quality of this IOL.” Dr. Yeoh wondered if Prof. Hyon noticed any differences between implanting the AT ELANA compared to the AT LISA tri IOL in terms of results and patient satisfaction. “I think a very strong point of the

introduces so-called phase zones as part of the optical design of the IOL. This ideal surface design with much shallower angles can be manufactured more precisely, minimizing the amount of uncon trolled light scatter and glare. The material of the AT ELANA IOL itself is made from a glisten ing-free hydrophobic acrylate material, which results in a high Abbe number. An Abbe number is an approximate measure of the amount of light dispersed into individual wavelengths while passing through a material. “The Abbe number is inversely proportional to the refractive index,” Prof. Hyon stated. “The higher the Abbe number, the lower the refractive index, the smaller the chromatic aberration, and the better the image quality.” Another advantage of the AT ELANA is its IOL architecture. The reinforced optic-haptic junction is designed to ensure refractive sta bility as it is coupled with step-vaulted C-loop haptics. The C-loop platform enables easy centering while maximizing direct capsular contact, which gives stability and supports a consistent and stable axial IOL position in the capsular bag. Additionally, the 360° sharp edge design minimizes posterior capsule opacification (PCO). Spe cifically, the lathe-cut manufacturing technology provides a <10 μm radius sharp-edge design to prevent early cell migration and PCO. “The high level of refractive stability and low PCO rates are compa rable to other hydrophobic IOLs on the market,” Prof. Hyon said. The AT ELANA IOL haptic design and anti-PCO edge was, in fact, inherited from the CT LUCIA 621P monofocal IOL. In a peer-reviewed bench study, 2 the CT LUCIA IOL was found to have The patented ZEISS Smooth Micro Phase technology in the AT ELANA IOL provides an ideal surface design with shallower angles that minimizes the amount of uncontrolled light scatter and glare. “ The AT ELANA has a very low refractive index and a high ABBE number when compared to other lenses on the market. ” Joon Young Hyon, MD, PhD

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EyeWorld Asia-Pacific | December 2025

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