{"title":"Correction of High Astigmatism by Autologous Astigmatic Lenticule Reshaping and Rotation.","authors":"Jianmin Shang, Xiaoying Wang, Haipeng Xu, Jia Huang, Xingtao Zhou","doi":"10.3928/1081597X-20240701-01","DOIUrl":"https://doi.org/10.3928/1081597X-20240701-01","url":null,"abstract":"<p><strong>Purpose: </strong>To explore the use of autologous astigmatic lenticule reshaping and rotation surgery to correct high astigmatism in conjunction with excimer laser technology to correct residual refractive error.</p><p><strong>Methods: </strong>Six patients with high astigmatism (8 eyes, all with astigmatism from -5.50 to -11.00 diopters [D]) seeking refractive error correction were enrolled. The following methods were used to correct refractive errors that could not be corrected by a single conventional surgery: (1) cutting of a customized lens using FLEx technology, (2) lifting of the corneal flap and reshaping the autologous astigmatic lenticule in situ using an excimer laser, and (3) rotation of the autologous astigmatic lenticule by 90°. Uncorrected distance visual acuity, subjective refraction, corneal topography, and anterior segment optical coherence tomography were performed preoperatively and postoperatively.</p><p><strong>Results: </strong>The efficacy and safety indices at 6 months postoperatively were 0.93 ± 0.18 and 1.06 ± 0.11, respectively, the spherical equivalent remained stable and close to emmetropia (-0.13 ± 0.70 D) from 1 to 6 months postoperatively, postoperative astigmatism was generally mildly undercorrected (-1.22 ± 0.43 D), and the difference in corneal curvatures at 2 mm from the apex of the cornea was significantly reduced compared to preoperatively (<i>P</i> < .05); however, the corresponding values at 1 and 3 mm showed no difference.</p><p><strong>Conclusions: </strong>Correction of high astigmatism with autologous astigmatic lenticule reshaping and rotation surgery is tissue-sparing, predictable, and significantly improves postoperative visual acuity and quality. This method is feasible and safe, with predictability requiring further study. This novel surgical approach has potential for patients with high astigmatism that cannot be corrected by conventional refractive surgery. <b>[<i>J Refract Surg</i>. 2024;40(8):e554-e561.]</b>.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"40 8","pages":"e554-e561"},"PeriodicalIF":2.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141906839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
George O Waring, Karl Stonecipher, Mark Lobanoff, Y Ralph Chu, Michael Endl, Gregg Feinerman, Lester O Hosten, Nisha Kumar
{"title":"Safety and Effectiveness of Laser in Situ Keratomileusis Using the Teneo 317 Model 2 for Correcting Myopia and Myopic Astigmatism: Results of the U.S. FDA Clinical Trial.","authors":"George O Waring, Karl Stonecipher, Mark Lobanoff, Y Ralph Chu, Michael Endl, Gregg Feinerman, Lester O Hosten, Nisha Kumar","doi":"10.3928/1081597X-20240611-03","DOIUrl":"10.3928/1081597X-20240611-03","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the safety and effectiveness of a new aspheric ablation profile for correcting myopia and myopic astigmatism.</p><p><strong>Methods: </strong>This prospective, multicenter study included patients who underwent laser in situ keratomileusis (LASIK) using a new aspheric ablation profile of the Technolas Teneo 317 (Model 2) excimer laser (version 1.28 US SW) by Technolas Perfect Vision, Bausch+Lomb, Inc. No nomogram adjustments were made, and the patient's manifest refraction was entered into the laser (for treatment). Postoperative assessments included visual and refractive outcomes. Patients were asked to complete the Patient-Reported Outcomes With LASIK (PROWL) questionnaire preoperatively and postoperatively.</p><p><strong>Results: </strong>A total of 333 eyes from 168 patients with a mean age of 33 ± 7 years were included. At postoperative 9 months, uncorrected and corrected distance visual acuities of 20/25 or better were seen in 97.8% and 100% of eyes, respectively. None of the eyes lost two or more lines of corrected distance visual acuity. The mean manifest spherical refraction improved from -5.67 ± 2.52 diopters (D) preoperatively to -0.04 ± 0.32 D postoperatively, with 92.7% of eyes achieving residual refractive error within ±0.50 D. Residual refractive cylinder within ±0.50 and ±1.00 D was seen in 93% and 99.4% eyes, respectively. The refractive outcomes were stable throughout the follow-up of 9 months. The proportion of patients satisfied with their vision rose from 27.7% preoperatively to 98.1% postoperatively.</p><p><strong>Conclusions: </strong>LASIK performed using a new aspheric ablation profile of the Technolas Teneo 317 (Model 2) excimer laser is safe and effective for correcting myopia and myopic astigmatism, yielding excellent visual and refractive outcomes that were stable over 9 months. <b>[<i>J Refract Surg</i>. 2024;40(8):e544-e553.]</b>.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"40 8","pages":"e544-e553"},"PeriodicalIF":2.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141906846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biana Dubinsky-Pertzov, Ori Mahler, Asaf Shemer, Idan Hecht, Francis Simaan, Avner Belkin, Eran Pras, Adi Einan-Lifshitz
{"title":"Anterior Chamber Intraocular Lens Implantation Versus Four-Flanged Scleral Fixation Technique for Patients With Loss of Capsular Support During Routine Cataract Surgery.","authors":"Biana Dubinsky-Pertzov, Ori Mahler, Asaf Shemer, Idan Hecht, Francis Simaan, Avner Belkin, Eran Pras, Adi Einan-Lifshitz","doi":"10.3928/1081597X-20240523-01","DOIUrl":"https://doi.org/10.3928/1081597X-20240523-01","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the outcomes of anterior chamber intraocular lens (AC-IOL) implantation versus the four-flanged scleral fixation technique in eyes with loss of capsular support during routine cataract surgery.</p><p><strong>Methods: </strong>This was a retrospective cohort study of all patients in whom an IOL was implanted either during or after short-term aphakia due to loss of capsular and sulcus support in a routine cataract surgery with at least 6 months of follow-up time between 2015 and 2023 in a tertiary medical center in Israel. Two different IOL implantation techniques were compared: the implantation of an angle-supported ACIOL and four-flanged scleral fixation. Main outcome measures included postoperative complications such as pseudophakic bullous keratopathy, loss of intraocular pressure control and glaucoma, IOL subluxation, and retinal detachment.</p><p><strong>Results: </strong>Sixty-five eyes of 65 patients were included in the study, 33 eyes in the AC-IOL group and 32 eyes in the flange group. Follow-up time was 29.92 ± 20.02 months in the AC-IOL group and 20.17 ± 15.56 months in the flange group (<i>P</i> = .087). Pseudophakic bullous keratopathy was observed in 10 (30.3%) patients in the AC-IOL group and in 1 (3.1%) patient in the flange group (<i>P</i> = .04). This association remained significant using survival analysis (<i>P</i> = .006). In 4 (12.1%) patients in the AC-IOL group, a glaucoma filtering procedure was performed to control the intraocular pressure compared with none in the flange group (<i>P</i> = .042).</p><p><strong>Conclusions: </strong>In the setting of loss of capsular support during routine cataract surgery, four-flanged scleral fixation showed an overall lower rate of complications and significantly reduced rate of subsequent surgical interventions. <b>[<i>J Refract Surg</i>. 2024;40(8):e520-e526.]</b>.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"40 8","pages":"e520-e526"},"PeriodicalIF":2.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141906837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparative Accuracy of Barrett Integrated Keratometry Toric Calculator With Predicted Versus Measured Posterior Corneal Astigmatism.","authors":"Xiaotong Yang, Yufan Yin, Shuyang Wang, Xiaomei Bai, Yuanfeng Jiang, Shaochong Bu","doi":"10.3928/1081597X-20240514-04","DOIUrl":"https://doi.org/10.3928/1081597X-20240514-04","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the prediction accuracy of the Barrett toric calculator using standard or integrated keratometry (IK) mode in combination with predicted or measured posterior corneal astigmatism (PCA) in a group of patients with cataract implanted with non-toric IOLs.</p><p><strong>Methods: </strong>In this retrospective clinical cohort study, the medical records of patients with age-related cataract who underwent phacoemulsification with the implantation of an aspheric monofocal IOL were reviewed. Four methods, including standard keratometry with predicted PCA (PPCA), IK combined with predicted PCA (IK-PPCA), and IK combined with measured PCA derived from IOLMaster 700 (Carl Zeiss Meditec AG) or CASIA2 (Tomey) (IK-MMPCA or IK-CMPCA), were applied to the Barrett toric calculator to calculate the predicted residual astigmatism. The mean absolute prediction error (MAPE), centroid of the prediction error, and proportion of eyes within the prediction error of ±0.50, ±0.75, and ±1.00 diopters (D) were all ciphered out from the four methods, respectively.</p><p><strong>Results: </strong>Data from 129 eyes of 129 patients were included in this study. The MAPE of the IK-PPCA method (0.57 ± 0.36 D) was significantly smaller than that of the PPCA (0.62 ± 0.38 D) and IK-CMPCA (0.63 ± 0.46 D) methods (<i>P</i> = .048 and .014, respectively). There were no significant differences in the centroid vectors of prediction errors and predictability rates among the four methods (all <i>P</i> > .05).</p><p><strong>Conclusions: </strong>In the current version of the Barrett toric calculator, the predictive accuracy of the IK mode incorporating PPCA was slightly superior to using the standard keratometry mode or incorporating MPCA. <b>[<i>J Refract Surg</i>. 2024;40(7):e453-e459.]</b>.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"40 7","pages":"e453-e459"},"PeriodicalIF":2.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141616730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Julia Hernández-Lucena, Federico Alonso-Aliste, Jonatan Amián-Cordero, José-María Sánchez-González
{"title":"Outcomes of Corneal Compound Hyperopic Astigmatism With Presbyopia by Zeiss PRESBYOND Laser Blended Vision LASIK Using Default Custom Refractive Software Master Target Refractions for Reduced Anisometropia.","authors":"Julia Hernández-Lucena, Federico Alonso-Aliste, Jonatan Amián-Cordero, José-María Sánchez-González","doi":"10.3928/1081597X-20240506-02","DOIUrl":"https://doi.org/10.3928/1081597X-20240506-02","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effectiveness, safety, and stability of a modified PRESBYOND Laser Blended Vision protocol (Carl Zeiss Meditec AG) for correcting hyperopic astigmatism and presbyopia, using Custom Refractive Software Master (CRSM) targeting over a 6-month period.</p><p><strong>Methods: </strong>A total of 636 eyes of 318 patients with a mean age of 51.05 ± 4.71 years (range: 40 to 60 years) met the inclusion and exclusion criteria. All patients completed a 6-month follow-up. CRSM software was used to generate ablation profiles for the MEL90 excimer laser (Carl Zeiss Meditec AG). The target refraction was emmetropic for the dominant eyes and between -0.75 and -1.12 diopters (D) for the near eyes.</p><p><strong>Results: </strong>Visual and refractive results were studied separately by the dominant and non-dominant eyes. The mean attempt to correct for spherical equivalent refraction was +2.17 ± 1.16 D (range: -1.00 to +5.37 D). The mean attempted cylinder was -0.60 ± 0.75 D (range: -4.00 to 0.00 D). All eyes monocularly achieved uncorrected distance visual acuity (UDVA) of 20/25 or better after refractive treatment and 88% achieved 20/20. Binocularly all eyes achieved UDVA of 20/25 or better and 96.54% achieved 20/20. Ninety-eight percent of the patients maintained their corrected distance visual acuity before surgery and UDVA 6 months after surgery.</p><p><strong>Conclusions: </strong>This hyperopic micro-anisometropia protocol with PRESBYOND Laser Blended Vision was an effective, safe, and well-tolerated refractive treatment. It was an effective procedure with excellent results for UDVA and uncorrected near visual acuity and demonstrates that binocular summation exists. <b>[ <i>J Refract Surg.</i> 2024;40(7):e480-e489.]</b>.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"40 7","pages":"e480-e489"},"PeriodicalIF":2.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141616735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yi Fen Wu, Rui Xue Tu, Ying Zhang, Xiao Yu Zhao, Jie Qu, Yong Wang, A-Yong Yu
{"title":"Influence of Ocular Biometric Parameters on Intraocular Lens Position: A Prospective Cohort Study.","authors":"Yi Fen Wu, Rui Xue Tu, Ying Zhang, Xiao Yu Zhao, Jie Qu, Yong Wang, A-Yong Yu","doi":"10.3928/1081597X-20240514-02","DOIUrl":"https://doi.org/10.3928/1081597X-20240514-02","url":null,"abstract":"<p><strong>Purpose: </strong>To assess the influence of ocular biometric parameters on intraocular lens (IOL) tilt and decentration after cataract surgery.</p><p><strong>Methods: </strong>Patients scheduled for cataract surgery were screened for inclusion in this prospective cohort study. Tilt and decentration of the crystalline lens and IOL were measured using the CASIA2 (Tomey). Anterior chamber depth (ACD), lens thickness (LT), and axial length (AL) were preoperatively measured by the IOLMaster 700 (Carl Zeiss Meditec AG). Multivariate regression analysis was performed to assess the influence of ocular biometric parameters on IOL tilt and decentration after cataract surgery.</p><p><strong>Results: </strong>In total, 191 eyes of 120 patients were included. Age was positively correlated with IOL tilt, whereas ACD and AL were negatively correlated with IOL tilt. A strong positive correlation was found between preoperative crystalline lenses and postoperative IOLs in tilt magnitude (<i>r</i> = 0.769, <i>P</i> < .001) and tilt direction (<i>r</i> = 0.688, <i>P</i> < .001). A positive correlation was found between preoperative and postoperative lens decentration magnitude and decentration direction. Greater postoperative IOL tilt and decentration were significantly associated with greater preoperative crystalline lens tilt (<i>P</i> < .001) and decentration (<i>P</i> = .027).</p><p><strong>Conclusions: </strong>IOL tilt was greater in older patients. Shorter AL and shallower ACD contributed to greater IOL tilt. The tilt and decentration of the IOL will be greater in patients with greater tilt and decentration of the crystalline lens. <b>[<i>J Refract Surg</i>. 2024;40(7):e438-e444.]</b>.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"40 7","pages":"e438-e444"},"PeriodicalIF":2.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141616733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Erratum for \"Taking a Look\".","authors":"","doi":"10.3928/1081597X-20240619-01","DOIUrl":"10.3928/1081597X-20240619-01","url":null,"abstract":"","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"40 7","pages":"e506"},"PeriodicalIF":2.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141616732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Look At Me.","authors":"Maite Albors-Verdu","doi":"10.3928/1081597X-20240611-01","DOIUrl":"https://doi.org/10.3928/1081597X-20240611-01","url":null,"abstract":"","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"40 7","pages":"437"},"PeriodicalIF":2.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141616734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}