Lensar announced the following posters/papers were accepted to be presented at the 2020 AAO Virtual Meeting taking place Nov. 13-15.
2020 AAO Accepted Posters/Papers
Company | Type | Title | Abstract | Speaker/First Author |
LENSAR | Poster | Femtosecond Laser-Assisted Capsulotomy With Capsular Marks for Guiding Toric IOL Alignment During Cataract Surgery | Abstract
Purpose To assess the safety, efficacy and visual and refractive outcomes of toric IOL implantation guided by femtosecond laser–assisted capsular marks (CMs) during cataract surgery with femtosecond laser (FLACS). Methods A retrospective study included 74 astigmatic (1.18 to 4.23 D) eyes that underwent cataract surgery with toric IOL implantation using FLACS with the LENSAR laser system. Iris registration–based cyclorotation correction was used to create a capsulotomy with CMs on the desired axis of toric IOL implantation. Visual and refractive outcomes were studied, as well as outcomes with different toric IOL platforms. Results Astigmatism magnitude decreased from 1.92 ± 0.63 D preoperatively to 0.44 ± 0.53 D postoperatively (P < .001), with 73% of eyes having residual refractive astigmatism of ≤0.5 D. Uncorrected distance visual acuity of 20/40 or better was achieved in 92% of eyes. No complications occurred on any cases. Conclusion Femtosecond laser–assisted capsulotomy with CMs is a safe and effective way of guiding toric IOL implantation on the intended axis of implantation and reducing astigmatism postoperatively. | Topic: Cataract
Presenting Author:
Vasilios F Diakonis MD Co-Author(s):
Robert J Weinstock MD
Renee Bondurant |
LENSAR | Poster | Outcome of Arcuate Keratotomy Using Iris Registration–Guided Femtosecond Laser for the Management of Astigmatism During Cataract Surgery | Abstract
Purpose To evaluate the outcome of astigmatism correction in patients who have undergone femtosecond laser–assisted cataract surgery (FLACS) with arcuate keratotomies (AKs) in eyes with low-to-moderate corneal astigmatism. Methods This retrospective study included 26 patients (43 eyes) with pre-existing corneal astigmatism ranging from 0.5 to 2.0 D that had undergone FLACS and AKs with implantation of multifocal IOL. The results, which were analyzed at 2 months postoperatively, included frequency distribution histograms, vector analysis, and single-angle polar plots. Results The postoperative refractive astigmatism was reduced compared with preoperative corneal astigmatism to 0.07 D ± 0.17 (SD) from 0.68 ± 0.36 D (P < .001). Forty-two eyes (97.7%) demonstrated postoperative refractive astigmatism of 0.5 D or less. The difference vector and the correction index were 0.02 @ 82 degrees (0.06 D arithmetic mean) and 0.93, respectively. Conclusion Femtosecond laser–assisted AK based on iris registration technology is a safe and effective treatment option for astigmatism correction during cataract surgery. | Topic: Cataract
Presenting Author:
Seong-Jun Lee MD PHD Co-Author(s):
Bae Sin Woo |
LENSAR | Poster | Outcome of Toric IOLs Aligned With Iris Registration-Guided, FsL-Assisted Capsular Marks for the Management of Astigmatism During Cataract Surgery | Abstract
Purpose To evaluate visual and refractive outcomes following toric IOL implantation guided by iris registration–guided, femtosecond laser (FsL)-assisted capsular marks. Methods This retrospective study included 21 patients (28 eyes) that had undergone FsL-assisted cataract surgery and toric IOL implantation. Toric IOL implantation was guided using iris registration–guided capsular marks on the capsular rim to guided toric IOL placement. The results, which were analyzed at 2 months postoperatively, included frequency distribution histograms, vector analysis and single-angle polar plots. Results The mean amount of cylinder correction was 1.64 D ± 0.91 (SD) (range: 0.52 to 4.57 D). The mean remaining refractive astigmatism was 0.09 ± 0.23 D. The difference vector and the correction index were 0.02 @ 79 degrees (0.09 D arithmetic mean) and 0.97, respectively. Conclusion Iris registration–guided, FsL-assisted capsular marks for guiding toric IOL alignment represents an effective method for astigmatism correction during cataract surgery. | Topic: Cataract
Presenting Author:
Seong-Jun Lee MD PHD Co-Author(s):
Bae Sin Woo |
LENSAR | Paper | Refractive Outcomes of a Light-Adjustable IOL in Cataract Patients With a History of RK | Abstract
Purpose To describe the results of phacoemulsification and implantation of a light-adjustable IOL in patients with previous radial keratotomy (RK). Methods Retrospective case series of 11 patients (16 eyes) with cataract and a history of RK who underwent phacoemulsification with implantation of a light-adjustable IOL. Two weeks after the second eye surgery, the patients underwent adjustment by ultraviolet (UV) light. Postoperatively, manifest refraction, astigmatism and spherical equivalent were recorded for all patients. The mean absolute error (MAE) and percentage of eyes within 0.5 D from target were calculated. Follow-up time was between 2 and 4 months. Results The MAE after adjustment was 0.31 D, and the percentage of eyes within 0.5 D after adjustment was 94% (15/16 eyes). Prior to adjusting the IOL, the MAE was 0.97 D and the percentage of eyes within 0.5 D was only 50%. Conclusion The light-adjustable lens works well in eyes with previous RK surgery, with refractive results superior to current technology such as intraoperative aberrometry and IOL formulae. Limitations of these data include sample size and length of follow-up. | Topic: Cataract
Presenting Author:
James D Lehmann MD |
