Journal of refractive surgery最新文献

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Visual and Refractive Outcomes Across Low, Medium, and Large Cyclorotation Angles in Myopic LASIK With Automated Cyclorotation Compensation. 自动旋转补偿近视LASIK低、中、大旋转角度的视力和屈光效果。
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-08-01 DOI: 10.3928/1081597X-20260608-01
Dror Ben Ephraim Noyman, Margarita Safir, Adir Sommer, Waseem Nasser, Tzahi Sela, Gur Munzer, Igor Kaiserman, Michael Mimouni
{"title":"Visual and Refractive Outcomes Across Low, Medium, and Large Cyclorotation Angles in Myopic LASIK With Automated Cyclorotation Compensation.","authors":"Dror Ben Ephraim Noyman, Margarita Safir, Adir Sommer, Waseem Nasser, Tzahi Sela, Gur Munzer, Igor Kaiserman, Michael Mimouni","doi":"10.3928/1081597X-20260608-01","DOIUrl":"https://doi.org/10.3928/1081597X-20260608-01","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate visual and refractive outcomes across different cyclorotation magnitudes in myopic laser in situ keratomileusis (LASIK) using automated cyclorotation compensation.</p><p><strong>Methods: </strong>This retrospective comparative study included consecutive patients who underwent myopic LASIK between 2012 and 2023. Patients were divided into three groups according to their cyclorotation angle magnitude. A comparison of baseline and intraoperative parameters was performed. Refractive and visual outcomes were assessed, including efficacy and safety indices, and an Alpins vector analysis was performed. Multiple linear regression was used to identify the effect of potential confounders.</p><p><strong>Results: </strong>Overall, 6,920 eyes of 4,454 patients were included. The mean age was 30.7 ± 8.7 years and 47.7% (2,130) were women. Analysis indicated significant differences in corrected distance visual acuity between the groups, but post-hoc analysis revealed no significant pairwise differences. Other visual and refractive outcomes including the calculated indices showed no significant differences. Alpins vector analysis showed no significant differences between the groups in any of the vectors in either magnitude or direction, nor were there significant differences in the calculated indicators. Multiple linear regression suggested age, maximum ablation depth, rotation direction, preoperative axis, and treated axis had confounding effects mostly on Alpins vectors. However, no significant effect was noted for outcomes that showed significant differences.</p><p><strong>Conclusions: </strong>Cyclorotational angle magnitude did not significantly impact visual or refractive outcomes in myopic LASIK when using modern laser devices. These findings suggest limited clinical relevance of cyclorotation degrees in LASIK outcomes, with other factors potentially playing a more significant role in surgical planning.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"42 8","pages":"e832-e840"},"PeriodicalIF":2.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148701520","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}
引用次数: 0
Dual-Plane Shack-Hartmann Wavefront Sensing in a Computer Eye Model Implanted With Rotationally Asymmetric Bifocal Intraocular Lenses. 旋转非对称双焦点人工晶状体植入计算机眼模型的双平面Shack-Hartmann波前传感。
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-08-01 DOI: 10.3928/1081597X-20260511-03
Suman Sangiri, Vyas Akondi
{"title":"Dual-Plane Shack-Hartmann Wavefront Sensing in a Computer Eye Model Implanted With Rotationally Asymmetric Bifocal Intraocular Lenses.","authors":"Suman Sangiri, Vyas Akondi","doi":"10.3928/1081597X-20260511-03","DOIUrl":"https://doi.org/10.3928/1081597X-20260511-03","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate wavefront aberrations in eyes implanted with rotationally asymmetric refractive bifocal intraocular lenses (IOLs) using a modified Shack-Hartmann wavefront sensor (SHWS) designed to mitigate artifactual coma.</p><p><strong>Methods: </strong>In this simulation study, postoperative optical quality was evaluated using wavefront analysis in the presence of various ocular aberrations. A bifocal phase map (3.00 diopter [D] near addition, 50% energy distribution) was introduced in a computer eye model (5-mm pupil; 850-nm light source). The emerging wavefront displaced the simulated SHWS lenslet images from their reference positions. Wavefronts were evaluated using: (1) the standard integration method, considering lenslet images across the entire circular pupil, and (2) the proposed method, which captures SHWS data at near and far foci and combines in-focus lenslet images from the corresponding zones of the bifocal IOL. The interaction between the pupillary phase and induced wavefront aberrations (0.25 µm amplitude) was further analyzed using both methods.</p><p><strong>Results: </strong>In the absence of ocular aberrations, standard integration detects a substantial artifactual primary vertical coma with a wavefront root mean square (RMS) of 0.57 µm. In contrast, the proposed method reduced the residual RMS to 0.01 µm. In the presence of aberrations up to the fourth order, the proposed method achieved a mean residual RMS of 35 nm, enabling diffraction-limited wavefront sensing.</p><p><strong>Conclusions: </strong>The proposed SHWS integration method overcomes the phase asymmetry of segmented bifocal IOLs. By providing precise postoperative wavefronts and through-focus visual quality metrics, this approach offers a robust tool for clinical evaluation of patients implanted with these IOLs.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"42 8","pages":"e759-e769"},"PeriodicalIF":2.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148701535","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}
引用次数: 0
Targeting Higher Order Aberrations Alone in Keratoconus: A Tissue-Saving Alternative to Established Protocols. 仅针对圆锥角膜的高阶像差:一种现有方案的组织保存替代方案。
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-08-01 DOI: 10.3928/1081597X-20260512-01
Shady T Awwad, Karen E Asfar, Samuel Arba-Mosquera, Noura Wahoud, Jeremiah Gendy, Jad F Assaf, Yara Bteich
{"title":"Targeting Higher Order Aberrations Alone in Keratoconus: A Tissue-Saving Alternative to Established Protocols.","authors":"Shady T Awwad, Karen E Asfar, Samuel Arba-Mosquera, Noura Wahoud, Jeremiah Gendy, Jad F Assaf, Yara Bteich","doi":"10.3928/1081597X-20260512-01","DOIUrl":"https://doi.org/10.3928/1081597X-20260512-01","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate cone stromal ablation depth with varying optical zones using different customized ablation strategies in keratoconus.</p><p><strong>Methods: </strong>This retrospective computational analysis assessed 59 eyes from 59 patients with mild to moderate keratoconus using three different simulation approaches. The first approach involved treating the full manifest refraction along with the corneal higher order aberrations (HOAs). The second approach, following the Athens Protocol, targeted all HOAs with up to 70% correction of the cylinder and sphere, limiting cone stromal ablation to 50 µm at an optical zone (OZ) of 5.5 mm. The third approach treated all HOAs and included only the sphere and cylinder embedded within the HOA ablation profile, as calculated by the ORK CAM software for the SCHWIND AMARIS (SCHWIND eye-tech-solutions GmbH). All models were simulated on the ORK module, with OZ ranging from 5.5 to 7 mm. The primary outcome measure was the mean stromal ablation depth over the cone and was calculated for all possible scenarios.</p><p><strong>Results: </strong>In approach #1, the mean cone stromal ablation depths and ablation volumes were 49 ± 28, 58 ± 34, 68 ± 40, and 77 ± 46 µm, and 1,074 ± 626, 1,460 ± 863, 1,906 ± 1,113, and 2,448 ± 1,451 nl for an OZ of 5.5, 6, 6.5, and 7 mm, respectively (<i>P</i> < .001). Approach #2 yielded mean depths and volumes of 33 ± 13, 38 ± 15, 44 ± 17, and 50 ± 19 μm, and 686 ± 266, 939 ± 371, 1,240 ± 489, and 1,592 ± 669 nl, respectively (<i>P</i> < .001). In approach #3, the corresponding depths and volumes were 15 ± 6, 17 ± 7, 19 ± 7, and 21 ± 8 µm and 279 ± 89, 377 ± 118, 491 ± 146, and 626 ± 205 nl, respectively, across the same OZ range (<i>P</i> < .001). There was a significant difference in mean cone stromal ablation depths and ablation volumes among the three approaches across all OZs, with approach #3 consistently demonstrating the lowest ablation depths and ablation volumes (<i>P</i> < .001). Furthermore, the rate of increase in mean stromal ablation depth over the cone with expanding OZ size was minimal in approach #3.</p><p><strong>Conclusions: </strong>Treating only the sphere and cylinder embedded into the HOA ablation treatment profile leads not only to the slimmest ablation depth over the cone and ablation volume, but, more importantly, it provides the lowest increase in ablation depth with enlargement of the OZ.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"42 8","pages":"e841-e851"},"PeriodicalIF":2.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148701543","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}
引用次数: 0
Ray-Tracing-Guided LASIK: Refractive and Visual Outcomes and the Role of Higher Order Aberrations in Visual Gain. 光线追踪引导LASIK:屈光和视力结果以及高阶像差在视力增益中的作用。
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-08-01 DOI: 10.3928/1081597X-20260508-03
Renshen Shi, Wanghua Zhao, Liangyong Zhu
{"title":"Ray-Tracing-Guided LASIK: Refractive and Visual Outcomes and the Role of Higher Order Aberrations in Visual Gain.","authors":"Renshen Shi, Wanghua Zhao, Liangyong Zhu","doi":"10.3928/1081597X-20260508-03","DOIUrl":"https://doi.org/10.3928/1081597X-20260508-03","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the safety and efficacy of ray-tracing-guided laser in situ keratomileusis (LASIK) and to investigate the associations among visual line gain, higher order aberrations (HOAs), and manifest refraction spherical equivalent (MRSE).</p><p><strong>Methods: </strong>This retrospective study enrolled 285 eyes of 143 participants who underwent ray-tracing-guided LASIK, and measurements including visual acuity, manifest refraction, and whole-eye aberrations at a 6-mm diameter pupil, with examinations performed preoperatively and at 1 day, 1 week, 1 month, and 3 months postoperatively.</p><p><strong>Results: </strong>At 3 months postoperatively, 93.7% of eyes achieved uncorrected distance visual acuity (UDVA) of 20/20 or better, and 62.8% of eyes gained one or more visual lines of UDVA compared with preoperative corrected distance visual acuity (CDVA) (right eye: 62.9%; left eye: 62.7%). MRSE, astigmatism, astigmatism vectors, and HOAs were effectively corrected and well controlled. As UDVA improved postoperatively, trefoil decreased significantly compared with the pre-operative level (<i>P</i> < .01); in addition, eyes gaining one or more visual lines showed greater trefoil reduction and lower residual trefoil than eyes that did not gain (both <i>P</i> < .001). Notably, trefoil metrics did not differ across baseline MRSE strata, although the proportion of eyes with visual line gain decreased with increasing baseline MRSE.</p><p><strong>Conclusions: </strong>Ray-tracing-guided LASIK showed favorable safety, efficacy, predictability, and accuracy. Effective trefoil correction with low residual trefoil may be associated with visual line gain, and this association appears to be unaffected by the baseline MRSE distribution.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"42 8","pages":"e804-e814"},"PeriodicalIF":2.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148701598","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}
引用次数: 0
Biometry-Guided IOL Formula Selection in Post-Laser Vision Correction Eyes. 生物识别技术在激光后视力矫正眼人工晶体配方选择中的应用。
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-08-01 DOI: 10.3928/1081597X-20260629-02
David L Cooke, Jascha A Wendelstein, Kamran M Riaz
{"title":"Biometry-Guided IOL Formula Selection in Post-Laser Vision Correction Eyes.","authors":"David L Cooke, Jascha A Wendelstein, Kamran M Riaz","doi":"10.3928/1081597X-20260629-02","DOIUrl":"https://doi.org/10.3928/1081597X-20260629-02","url":null,"abstract":"<p><strong>Purpose: </strong>To determine whether objective biometry can guide intraocular lens formula selection in post-laser vision correction (LVC) eyes with indeterminate classification of actual LVC type (total keratometry [TK] TK<sub>ave</sub> - keratometry [K] K<sub>ave</sub> = 0.00 to 0.06), and to compare refractive accuracy among contemporary LVC formula strategies.</p><p><strong>Methods: </strong>A total of 507 post-LVC eyes (inclusive of both myopic [M-LVC] and hyperopic [H-LVC] eyes) with TK<sub>ave</sub> - K<sub>ave</sub> between 0.00 and 0.06 measured by swept-source optical coherence tomography biometry (IOLMaster 700; Carl Zeiss Meditec AG) were analyzed. Refractive prediction errors were calculated for 22 formulas, including eight H-LVC, eight M-LVC, and six non-LVC formulas. Formula performance was assessed using root mean square error rankings and heteroscedasticity testing for dependent data. The main outcome measure was refractive prediction error and proportion of eyes within ±0.50 diopters (D) of target refraction.</p><p><strong>Results: </strong>H-LVC formulas demonstrated superior refractive accuracy across all eyes, regardless of reported LVC type. Pearl DGS and Barrett True K No-History (H-LVC) achieved the highest proportion of eyes (approximately two-thirds) within ±0.50 D of target. K-based H-LVC formulas outperformed variants incorporating posterior K or TK. Standard formulas showed intermediate performance, whereas M-LVC formulas ranked lowest. Differences between top-performing formulas were statistically significant.</p><p><strong>Conclusions: </strong>In post-LVC eyes with TK<sub>ave</sub> - K<sub>ave</sub> between 0.00 and 0.06, H-LVC formulas provide the most accurate refractive outcomes, independent of reported treatment type. These findings challenge reliance on historical LVC classification for formula selection and support a measurement-driven approach in which biometry-guided formula selection improves outcomes when history is unreliable in ambiguous post-LVC eyes.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"42 8","pages":"e815-e823"},"PeriodicalIF":2.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148701539","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}
引用次数: 0
Longitudinal and Geographic Patterns of Public Interest in Refractive Surgery in the United States: A 10-Year Google Trends Analysis of LASIK, PRK, SMILE, and ICL Implantation (2015 to 2025). 美国公众对屈光手术兴趣的纵向和地理模式:LASIK、PRK、SMILE和ICL植入的10年趋势分析(2015年至2025年)
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-08-01 DOI: 10.3928/1081597X-20260604-01
Nicholas F Fazio, Mina M Sitto, David Szanto, Emily R White, Phillip C Hoopes, Majid Moshirfar
{"title":"Longitudinal and Geographic Patterns of Public Interest in Refractive Surgery in the United States: A 10-Year Google Trends Analysis of LASIK, PRK, SMILE, and ICL Implantation (2015 to 2025).","authors":"Nicholas F Fazio, Mina M Sitto, David Szanto, Emily R White, Phillip C Hoopes, Majid Moshirfar","doi":"10.3928/1081597X-20260604-01","DOIUrl":"https://doi.org/10.3928/1081597X-20260604-01","url":null,"abstract":"<p><strong>Purpose: </strong>To analyze trends and correlations in online public interest regarding four refractive procedures: laser in situ keratomileusis (LASIK), photorefractive keratectomy (PRK), small incision lenticule extraction (SMILE), and Implantable Collamer Lens (ICL) (STAAR Surgical) implantation.</p><p><strong>Methods: </strong>Monthly relative search volume (RSV) from Google Trends (Alphabet Inc) for terms \"LASIK surgery,\" \"SMILE surgery,\" \"PRK surgery,\" and \"ICL surgery\" was collected in the United States from January 1, 2015 to October 1, 2025.</p><p><strong>Results: </strong>\"LASIK surgery\" showed significantly greater search interest than PRK (10.3×), SMILE (14.8×), and ICL implantation (32.3×) (<i>P</i> < .001). Over the 10-year period, LASIK and PRK showed no significant changes in public interest (<i>P</i> > .05), whereas SMILE (<i>r</i> = 0.86) and ICL implantation (<i>r</i> = 0.81) demonstrated significant upward trends (both <i>P</i> < .001). However, subanalysis of the post-coronavirus disease 2019 period (March 2020 to October 2025) revealed a significant decline in LASIK search interest (<i>r</i> = -0.55; <i>P</i> < .001), whereas SMILE (<i>r</i> = 0.74) and ICL implantation (<i>r</i> = 0.84) continued to rise. PRK remained unchanged during this period. Search interest was strongly correlated between SMILE and ICL implantation (<i>r</i> = 0.80) and between PRK and LASIK (<i>r</i> = 0.59). Regionally, LASIK showed the highest RSV across most states, particularly above the national mean in the Midwest (Wisconsin and Iowa; <i>z</i> = 1.35) and the Northeast. Higher search interest was observed for PRK in Hawaii (<i>z</i> = 3.59), SMILE in Maryland (<i>z</i> = 3.12), and ICL implantation in Utah (<i>z</i> = 5.06).</p><p><strong>Conclusions: </strong>Despite LASIK's widespread popularity, search interest in SMILE and ICL implantation has increased during the past decade. Google Trends may be an effective tool for assessing shifting interest in refractive surgery modalities.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"42 8","pages":"e824-e831"},"PeriodicalIF":2.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148701564","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}
引用次数: 0
Long-term Outcomes of the Flanged Scleral Fixation Technique. 法兰巩膜固定技术的远期疗效。
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-07-01 DOI: 10.3928/1081597X-20260504-05
Biana Dubinsky-Pertzov, Ori S Mahler, Idan Hecht, Asaf Shemer, Michael Ostrovsky, Avner Belkin, Eran Pras, Adi Einan-Lifshitz
{"title":"Long-term Outcomes of the Flanged Scleral Fixation Technique.","authors":"Biana Dubinsky-Pertzov, Ori S Mahler, Idan Hecht, Asaf Shemer, Michael Ostrovsky, Avner Belkin, Eran Pras, Adi Einan-Lifshitz","doi":"10.3928/1081597X-20260504-05","DOIUrl":"https://doi.org/10.3928/1081597X-20260504-05","url":null,"abstract":"<p><strong>Purpose: </strong>To report long-term safety and efficacy of the flanged scleral fixation technique.</p><p><strong>Methods: </strong>This retrospective cohort study was conducted at a single tertiary medical center. Patients who underwent 7-0 polypropylene flanged scleral fixation between 2019 and 2022 and had at least 24 months of follow-up were included. The primary outcome was postoperative complication rate. Secondary outcomes included postoperative uncorrected and corrected distance visual acuity and refraction.</p><p><strong>Results: </strong>Eighty-nine eyes of 89 patients were included in the analysis. The mean age was 77.83 ± 9.33 years and 51 (57%) were male. In 45 eyes (50%) a subluxated IOL was repositioned and fixated, in 28 eyes (31%) the IOL was exchanged and a new IOL was fixated, and in 16 eyes (18%) secondary IOL implantation and fixation were performed in aphakic eyes with lack of capsular support. The mean follow-up time was 34.49 ± 10.19 months. Loss of intraocular pressure control requiring hypotensive medication and/or glaucoma intervention occurred in 12 patients (13.5%) and corneal pseudophakic bullous keratopathy occurred in 3 patients (3%) who later underwent posterior lamellar corneal transplantation. In 2 patients (2%) a second surgery was required to re-fixate the re-subluxated IOL due to intraocular slippage of one of the flanges.</p><p><strong>Conclusions: </strong>Flanged scleral fixation showed acceptable long-term anatomical and visual outcomes in this complex cohort. These findings should be interpreted cautiously given the lack of endothelial cell data and the observed postoperative intraocular pressure-related and corneal complications. Further prospective comparative studies with endothelial assessment are needed.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"42 7","pages":"e695-e700"},"PeriodicalIF":2.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148422026","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}
引用次数: 0
Toward a More Rigorous Definition of Customized Corneal Cross-Linking. 更严格地定义自定义角膜交联。
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-07-01 DOI: 10.3928/1081597X-20260618-01
Ciro Caruso, Gaetano Barbaro
{"title":"Toward a More Rigorous Definition of Customized Corneal Cross-Linking.","authors":"Ciro Caruso, Gaetano Barbaro","doi":"10.3928/1081597X-20260618-01","DOIUrl":"https://doi.org/10.3928/1081597X-20260618-01","url":null,"abstract":"","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"42 7","pages":"e745"},"PeriodicalIF":2.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421778","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}
引用次数: 0
Corneal Asphericity Preservation via Spatially Selective Peripheral Stromal Volume Ablation Following Ray-tracing-Guided LASIK. 射线追踪引导LASIK术后空间选择性外周间质体积消融保护角膜非球状性。
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-07-01 DOI: 10.3928/1081597X-20260415-01
Bo Zhao, Bo Yuan, Yutong Liu, Xuzhao Guo, Jingwen Chai, Huiqin Zhang, Yanjia Li, Qian Zhang, Xuefei Yang, Tong Wang, Weijie Jiang, Fengju Zhang, Xia Hua
{"title":"Corneal Asphericity Preservation via Spatially Selective Peripheral Stromal Volume Ablation Following Ray-tracing-Guided LASIK.","authors":"Bo Zhao, Bo Yuan, Yutong Liu, Xuzhao Guo, Jingwen Chai, Huiqin Zhang, Yanjia Li, Qian Zhang, Xuefei Yang, Tong Wang, Weijie Jiang, Fengju Zhang, Xia Hua","doi":"10.3928/1081597X-20260415-01","DOIUrl":"https://doi.org/10.3928/1081597X-20260415-01","url":null,"abstract":"<p><strong>Purpose: </strong>To quantitatively appraise postoperative visual quality and to delineate the spatial corneal morphological changes occurring within the central and pericentral optical zones subsequent to ray-tracing-guided laser in situ keratomileusis (RTLASIK) compared to Q-value-guided LASIK (Q-LASIK).</p><p><strong>Methods: </strong>Sixty eyes from 60 patients were enrolled: 30 eyes in the RT-LASIK group and 30 eyes in the Q-LASIK group with a mean preoperative spherical equivalent of -5.029 ± 1.532 diopters (D) versus -5.279 ± 1.779 D. The cornea was partitioned into three vertex-centered concentric regions: a central 0- to 3-mm optical zone, a paracentral 3- to 5-mm annulus, and a pericentral 5- to 7-mm annulus. The corneal ablation ratio (CAR) was calculated as the quotient of the preoperative-to-postoperative reduction in either corneal thickness (tCAR) or stromal volume (vCAR) divided by the absolute value of the preoperative SE.</p><p><strong>Results: </strong>Relative to the Q-LASIK group, the RT-LASIK group exhibited significantly superior uncorrected distance visual acuity, spherical equivalent, and 3-mm Strehl ratio 3 months postoperatively. The vCAR within the same 3- to 5-mm zone was significantly elevated in the RT-LASIK group, whereas the tCAR did not differ between groups. Furthermore, RTLASIK was associated with a significantly attenuated postoperative change in Q-value within the 5-mm zone, a more pronounced reduction in spherical aberration across all of the optical zones.</p><p><strong>Conclusions: </strong>RT-LASIK conferred superior postoperative visual performance by conserving native corneal asphericity and effecting a significant reduction in spherical aberration across the entire optical zone. This optical advantage was mediated by a proportionally greater ablation of stromal volume within the paracentral 3- to 5-mm annulus.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"42 7","pages":"e635-e643"},"PeriodicalIF":2.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148422062","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}
引用次数: 0
Reply: Toward a More Rigorous Definition of Customized Corneal Cross-Linking. 回复:对定制角膜交联的更严格定义。
IF 2.9 3区 医学
Journal of refractive surgery Pub Date : 2026-07-01 DOI: 10.3928/1081597X-20260624-01
Jui-Hung Hsu, Tsung-Hsien Tsai, Tsai-Wei Lin
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