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Ullrich M, Fisus AD, Palkovits S, Hienert J, Hirnschall N, Findl O. Rotational stability and capsular bag performance of a hydrophobic acrylic open-loop single-piece intraocular lens. Eur J Ophthalmol 2024:11206721241234393. [PMID: 38389411 DOI: 10.1177/11206721241234393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
PURPOSE To evaluate the rotational stability and capsular bag performance of a blue light-absorbing hydrophobic acrylic open-loop single-piece intraocular lens (IOL) with a blast-finished anchor wing haptic design during the first 6 postoperative months. METHODS In this prospective clinical study, patients with age-related cataract and potential postoperative corrected distance visual acuity (CDVA) of 0.2 logMAR or better were included. The patients received a non-toric hydrophobic acrylic single-piece IOL with an axis mark (YST0.00; Nidek Co. Ltd, Japan). Surgeries were video-taped. Retroillumination images were acquired 1 h, 1 week and 6 months postoperatively. Rotational stability was assessed by precise image overlay. At 6 months, Purkinje meter measurements were performed to evaluate tilt and decentration. RESULTS In total, 100 eyes of 77 patients were included in the analysis. Mean absolute rotation was 2.1 ± 1.7° (median 1.7, range: 0-7.9) at 6 months (1 h - 6 months postoperatively). IOL rotation was ≤3° and ≤6° in 74 (74%) and 98 (98%) eyes, respectively. Mean absolute IOL rotation from the end of surgery to 6 months was 2.5 ± 2.2° (median 2.3, range: 0-15.6; n = 78). Mean tilt (pupillary axis) and decentration were 4.1 ± 1.9° (median 4.0, range: 0.5-8.2) and 0.35 ± 0.17 mm (median 0.32, range: 0.06-0.91) respectively (n = 84). Postoperatively, 98 (98%) eyes achieved a CDVA of 0.2 logMAR or better, 95 (95%) of ≤0.1 and 81 (81%) of ≤0.0. CONCLUSIONS This hydrophobic acrylic single-piece IOL showed an excellent rotational stability and capsular bag position with low tilt and decentration values.
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Affiliation(s)
- Marlies Ullrich
- VIROS - Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria
| | - Andreea D Fisus
- VIROS - Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria
| | - Stefan Palkovits
- VIROS - Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria
| | - Julius Hienert
- VIROS - Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria
| | - Nino Hirnschall
- VIROS - Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria
- Department of Ophthalmology and Optometry, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria
| | - Oliver Findl
- VIROS - Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria
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Georgiev S, Kumar A, Findl O, Hirnschall N, Niederleithner M, Kendrisic M, Drexler W, Leitgeb RA. Digital ocular swept source optical coherence aberrometry. BIOMEDICAL OPTICS EXPRESS 2021; 12:6762-6779. [PMID: 34858679 PMCID: PMC8606149 DOI: 10.1364/boe.430596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
Ocular aberrometry is an essential technique in vision science and ophthalmology. We demonstrate how a phase-sensitive single mode fiber-based swept source optical coherence tomography (SS-OCT) setup can be employed for quantitative ocular aberrometry with digital adaptive optics (DAO). The system records the volumetric point spread function at the retina in a de-scanning geometry using a guide star pencil beam. Succeeding test-retest repeatability assessment with defocus and astigmatism analysis on a model eye within ± 3 D dynamic range, the feasibility of technique is demonstrated in-vivo at a B-scan rate of >1 kHz in comparison with a commercially available aberrometer.
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Affiliation(s)
- Stefan Georgiev
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria
- Vienna Institute for Research in Ocular Surgery, Hanusch Hospital, Vienna, Austria
- Contributed equally
| | - Abhishek Kumar
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria
- Wavesense Engineering GmbH, Vienna, Austria
- Contributed equally
| | - Oliver Findl
- Vienna Institute for Research in Ocular Surgery, Hanusch Hospital, Vienna, Austria
| | - Nino Hirnschall
- Vienna Institute for Research in Ocular Surgery, Hanusch Hospital, Vienna, Austria
| | - Michael Niederleithner
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria
| | - Milana Kendrisic
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria
| | - Wolfgang Drexler
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria
| | - Rainer A. Leitgeb
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria
- Christian Doppler Laboratory for Innovative Optical Imaging and Its Translation to Medicine, Medical University of Vienna, Waehringer Guertel 18-20 A-1090 Vienna, Austria
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Bhogal-Bhamra GK, Sheppard AL, Kolli S, Wolffsohn JS. Rotational Stability and Centration of a New Toric Lens Design Platform Using Objective Image Analysis Over 6 Months. J Refract Surg 2019; 35:48-53. [DOI: 10.3928/1081597x-20181204-01] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 11/26/2018] [Indexed: 11/20/2022]
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Holladay JT, Pettit G. Improving toric intraocular lens calculations using total surgically induced astigmatism for a 2.5 mm temporal incision. J Cataract Refract Surg 2018; 45:272-283. [PMID: 30527793 DOI: 10.1016/j.jcrs.2018.09.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/27/2018] [Accepted: 09/27/2018] [Indexed: 10/27/2022]
Abstract
PURPOSE To determine in cataract surgery the total surgically induced astigmatism (SIA) that accounts for all factors that contribute to the difference between preoperative keratometric and postoperative refractive astigmatism other than any toricity of an intraocular lens (IOL). SETTING Twenty surgical sites in the United States. DESIGN Retrospective case series. METHODS An analysis was performed of 4 clinical trials involving toric IOLs and nontoric IOLs in standard cataract surgery. Data included preoperative keratometry and manifest refraction measurements at multiple postoperative visits. For each eye with a nontoric IOL, the total SIA vector was calculated as the vector difference between postoperative refractive and preoperative keratometric astigmatism. The relationship between the total SIA vector and meridian of preoperative keratometric astigmatism was determined and used to develop a new calculation algorithm for toric IOL implantation. The algorithm was tested retrospectively to identify optimum candidate eyes for various cylinder power toric IOLs as well as to compare results with the Barrett toric calculator. RESULTS The total SIA vector was a significant contributor to surgically associated astigmatic changes in eyes receiving nontoric IOLs. The total SIA vector was dependent on the preoperative steep meridian in a consistent fashion, allowing development of a new calculation algorithm for toric IOL correction. Retrospectively applying this algorithm to toric IOL cases led to significantly improved differences between toric and nontoric control populations. CONCLUSIONS Total SIA analysis is a new approach for toric IOL surgery. Because it considers all factors that may influence outcomes, the total SIA is a useful inclusion in toric IOL surgical planning.
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Affiliation(s)
- Jack T Holladay
- Department of Ophthalmology, Baylor College of Medicine, Houston, USA.
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Schartmüller D, Schriefl S, Schwarzenbacher L, Leydolt C, Menapace R. True rotational stability of a single-piece hydrophobic intraocular lens. Br J Ophthalmol 2018; 103:186-190. [PMID: 29666120 DOI: 10.1136/bjophthalmol-2017-311797] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 02/16/2018] [Accepted: 03/29/2018] [Indexed: 01/19/2023]
Abstract
BACKGROUND To evaluate rotation and its influencing factors of an aspheric one-piece hydrophobic acrylic intraocular lens (IOL) Vivinex XY1 during 6 months after operation. METHODS In this institutional trial, 122 eyes of 66 patients were implanted with a non-toric aspheric IOL Vivinex XY1 (Hoya Corporation, Tokyo, Japan). IOL alignment was assessed at the end of surgery, 1 hour, 1 week, 1 month and 6 months after implantation. Confounding factors such as axial length, presence of anterior fibrosis and randomised implantation in four different intended axes (0°, 45°, 90°, 135°) were evaluated. Decentration and tilt were measured using a Purkinje metre. RESULTS Assessment of rotational stability was possible for 103 of 122 implanted IOLs 6 months after eye surgery. The median absolute rotation was 1.1° (range: 0°-5°). Rotation was significantly increased within the first hour after operation compared with later time-points (p<0.001). No correlation was found with axial length and rotation (Spearman's r=0.048, p=0.63). No significant difference was observed regarding different implantation axes (p=0.75). Rotation was not influenced by the presence of anterior fibrosis (p=0.98). CONCLUSION Assessing the true IOL position at the end of surgery is crucial for the evaluation of rotational stability of IOLs. No IOL rotation exceeding 5° could be detected 6 months after surgery.
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Affiliation(s)
- Daniel Schartmüller
- Department of Ophthalmology and Optometry, Medical University of Vienna, Vienna, Austria
| | - Sabine Schriefl
- Department of Ophthalmology and Optometry, Medical University of Vienna, Vienna, Austria
| | - Luca Schwarzenbacher
- Department of Ophthalmology and Optometry, Medical University of Vienna, Vienna, Austria
| | - Christina Leydolt
- Department of Ophthalmology and Optometry, Medical University of Vienna, Vienna, Austria
| | - Rupert Menapace
- Department of Ophthalmology and Optometry, Medical University of Vienna, Vienna, Austria
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Hida WT, Tzelikis PF, Vilar C, Chaves MAPD, Motta AFP, Carricondo PC, Ventura BV, Ambrosio R, Nosé W, Alves MR. Outcomes study between femtosecond laser-assisted cataract surgery and conventional phacoemulsification surgery using an active fluidics system. Clin Ophthalmol 2017; 11:1735-1739. [PMID: 29026283 PMCID: PMC5627560 DOI: 10.2147/opth.s136136] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Purpose The purpose of this study was to compare intraoperative parameters between femtosecond laser-assisted cataract surgery (FLACS) and conventional phacoemulsification using Centurion® Vision System with Active Fluidics. Setting This study was performed at Brasília Ophthalmologic Hospital, Brasília, Federal District, Brazil. Patients and methods This was a prospective randomized comparative study. Patients with the diagnosis of cataract and surgical extraction programmed were divided into two groups: conventional phacoemulsification and FLACS. Intraoperative data were collected and submitted for statistical analysis. Results A total of 400 eyes were enrolled, 200 in each group. There were no surgical complications. Groups were statistically equivalent in age and nucleus density. Cumulative dissipated energy and torsional time were significantly reduced in the FLACS group. Conventional surgery had less fluid usage, total case time and aspiration (ASP) time. Conclusion FLACS with Active Fluidics System can reduce the ultrasound energy use during cataract surgery, in spite of increasing case time, fluid usage and ASP time.
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Affiliation(s)
- Wilson Takashi Hida
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District.,Department of Ophthalmology of São Paulo University School of Medicine, (FM-USP), São Paulo.,Department of Ophthalmology of São Paulo Federal University (UNIFESP) School of Medicine, São Paulo
| | - Patrick Frenzel Tzelikis
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District.,Department of Ophthalmology of São Paulo University School of Medicine, (FM-USP), São Paulo
| | - César Vilar
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District
| | - Mario Augusto Pereira Dias Chaves
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District.,ProVisão Hospital, João Pessoa, Paraíba
| | - Antônio Francisco Pimenta Motta
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District.,Department of Ophthalmology of São Paulo University School of Medicine, (FM-USP), São Paulo
| | - Pedro Carlos Carricondo
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District.,Department of Ophthalmology of São Paulo University School of Medicine, (FM-USP), São Paulo
| | - Bruna Vieira Ventura
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District.,Department of Ophthalmology of São Paulo Federal University (UNIFESP) School of Medicine, São Paulo.,Pernanbuco Eye Hospital (HOPE), Recife, Pernambuco, Brazil
| | - Renato Ambrosio
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District.,Department of Ophthalmology of São Paulo University School of Medicine, (FM-USP), São Paulo
| | - Walton Nosé
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District.,Department of Ophthalmology of São Paulo Federal University (UNIFESP) School of Medicine, São Paulo
| | - Milton Ruiz Alves
- Department of Cataract of Brasília Ophthalmology Hospital (HOB), Brasília, Federal District.,Renato Ambrosio Research Center (CEORA), Brasília, Federal District.,Department of Ophthalmology of São Paulo University School of Medicine, (FM-USP), São Paulo
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Kanellopoulos AJ, Asimellis G. Standard manual capsulorhexis / Ultrasound phacoemulsification compared to femtosecond laser-assisted capsulorhexis and lens fragmentation in clear cornea small incision cataract surgery. EYE AND VISION 2016; 3:20. [PMID: 27478858 PMCID: PMC4967293 DOI: 10.1186/s40662-016-0050-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 06/25/2016] [Indexed: 01/19/2023]
Abstract
Background Femtosecond-laser assisted clear cornea cataract surgery may hold promise in safer and more effective procedures. We decided to perform a comparative study to standard manual incision phacoemulsification surgery. Methods This is a single-center, single-intervention, and prospective comparative data evaluation of 133 consecutive cases subjected to cataract surgery. Group-A (Phaco), manual capsulorhexis & ultrasound phacoemulsification (n = 66); Group-B femtosecond-laser assisted capsulorhexis and lens fragmentation (n = 67), employing the LenSx laser (Alcon Surgical, Ft. Worth, TX). All cases were evaluated for refraction, visual acuity, keratometry, tomography, pachymetry, endothelial cell counts, intraocular pressure, and type of intraocular lens (IOL) implanted. The groups were matched for age, gender, pre-operative vision metrics, and cataract grade, and were followed up to 1 year. Results In group-A post-operative uncorrected distance visual acuity (UDVA) was 20/20 or better in 61.5 % and 20/25 or better in 78.5 % of the eyes. The femtosecond laser group-B had improved outcomes (p = 0.075 and p = 0.042, respectively): post-operative UDVA was 20/20 or better in 62.7 % of the eyes and 20/25 or better in 85.1 %. Linear regression scatterplots of achieved versus attempted spherical equivalent had excellent regression coefficients (r2 = 0.983 in group-A and 0.979 in group-B). There were 75.2 % cases in group-A and 80.6 % in group-B (p = 0.8732) within ±0.50 D of targeted refractive equivalent. Slight trend of under-correction was noted in group-A. Average residual manifest cylinder in the toric subgroup-A was -0.50 D (95 % Limit-of-Agreement (LoA) = -0.78 D), and in toric subgroup-B -0.45 D (LoA = -0.45 D). Conclusions Mean spherical equivalent refraction and visual acuity are comparable with laser cataract surgery compared with manual capsulorhexis & ultrasound phacoemulsification. Improved astigmatism correction may be among the benefits of femtosecond laser–assisted cataract surgery. Transient corneal edema may be a first day transient disadvantage in femtosecond laser–assisted cataract surgery.
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Affiliation(s)
- Anastasios John Kanellopoulos
- Laservision.gr Clinical and Research Eye Institute, Athens, Greece ; Department of Ophthalmology, NYU Medical School, New York, NY USA
| | - George Asimellis
- Laservision.gr Clinical and Research Eye Institute, Athens, Greece
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Kirwan C, Nolan JM, Stack J, Dooley I, Moore J, Moore TC, Beatty S. Introduction of a Toric Intraocular Lens to a Non-Refractive Cataract Practice: Challenges and Outcomes. INTERNATIONAL JOURNAL OF OPHTHALMOLOGY AND CLINICAL RESEARCH 2016; 3. [PMID: 27830188 DOI: 10.23937/2378-346x/1410056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIM To identify challenges inherent in introducing a toric intraocular lens (IOL) to a non-refractive cataract practice, and evaluate residual astigmatism achieved and its impact on patient satisfaction. METHODS Following introduction of a toric IOL to a cataract practice with all procedures undertaken by a single, non-refractive, surgeon (SB), pre-operative, intra-operative and post-operative data was analysed. Attenuation of anticipated post-operative astigmatism was examined, and subjectively perceived visual functioning was assessed using validated questionnaires. RESULTS Median difference vector (DV, the induced astigmatic change [by magnitude and axis] that would enable the initial surgery to achieve intended target) was 0.93D; median anticipated DV with a non-toric IOL was 2.38D. One eye exhibited 0.75D residual astigmatism, compared to 3.8D anticipated residual astigmatism with a non-toric IOL. 100% of respondents reported satisfaction of ≥ 6/10, with 37.84% of respondents entirely satisfied (10/10). 17 patients (38.63%) reported no symptoms of dysphotopsia (dysphoptosia score 0/10), only 3 respondents (6.8%) reported a clinically meaningful level of dysphotopsia (≥ 4/10). Mean post-operative NEI VF-11 score was 0.54 (+/-0.83; scale 0 - 4). CONCLUSION Use of a toric IOL to manage astigmatism during cataract surgery results in less post-operative astigmatism than a non-toric IOL, resulting in avoidance of unacceptable post-operative astigmatism.
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Affiliation(s)
- Clare Kirwan
- Biomedical Science Research Institute, University of Ulster, Coleraine, Northern Ireland; Institute of Eye Surgery, and Institute of Vision Research, Whitfield Clinic, Cork Road, Waterford, Ireland; Macular Pigment Research Group, Waterford Institute of Technology, Waterford, Ireland
| | - John M Nolan
- Macular Pigment Research Group, Waterford Institute of Technology, Waterford, Ireland
| | - Jim Stack
- Macular Pigment Research Group, Waterford Institute of Technology, Waterford, Ireland
| | - Ian Dooley
- University College Hospital Limerick, Ireland
| | - Johnny Moore
- Biomedical Science Research Institute, University of Ulster, Coleraine, Northern Ireland
| | - Tara Cb Moore
- Biomedical Science Research Institute, University of Ulster, Coleraine, Northern Ireland
| | - Stephen Beatty
- Institute of Eye Surgery, and Institute of Vision Research, Whitfield Clinic, Cork Road, Waterford, Ireland; Macular Pigment Research Group, Waterford Institute of Technology, Waterford, Ireland
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Zhang B, Ma JX, Liu DY, Du YH, Guo CR, Cui YX. Optical performance of toric intraocular lenses in the presence of decentration. Int J Ophthalmol 2015; 8:730-5. [PMID: 26309871 DOI: 10.3980/j.issn.2222-3959.2015.04.16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 11/03/2014] [Indexed: 12/18/2022] Open
Abstract
AIM To evaluate the optical performance of toric intraocular lenses (IOLs) after decentration and with different pupil diameters, but with the IOL astigmatic axis aligned. METHODS Optical performances of toric T5 and SN60AT spherical IOLs after decentration were tested on a theoretical pseudophakic model eye based on the Hwey-Lan Liou schematic eye using the Zemax ray-tracing program. Changes in optical performance were analyzed in model eyes with 3-mm, 4-mm, and 5-mm pupil diameters and decentered from 0.25 mm to 0.75 mm with an interval of 5° at the meridian direction from 0° to 90°. The ratio of the modulation transfer function (MTF) between a decentered and a centered IOL (MTFDecentration/MTFCentration) was calculated to analyze the decrease in optical performance. RESULTS Optical performance of the toric IOL remained unchanged when IOLs were decentered in any meridian direction. The MTFs of the two IOLs decreased, whereas optical performance remained equivalent after decentration. The MTFDecentration/MTFCentration ratios of the IOLs at a decentration from 0.25 mm to 0.75 mm were comparable in the toric and SN60AT IOLs. After decentration, MTF decreased further, with the MTF of the toric IOL being slightly lower than that of the SN60AT IOL. Imaging qualities of the two IOLs decreased when the pupil diameter and the degree of decentration increased, but the decrease was similar in the toric and spherical IOLs. CONCLUSIONS Toric IOLs were comparable to spherical IOLs in terms of tolerance to decentration at the correct axial position.
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Affiliation(s)
- Bin Zhang
- Department of Ophthalmology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
| | - Jin-Xue Ma
- Department of Ophthalmology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
| | - Dan-Yan Liu
- Department of Ophthalmology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
| | - Ying-Hua Du
- Department of Ophthalmology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
| | - Cong-Rong Guo
- Department of Ophthalmology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
| | - Yue-Xian Cui
- Department of Ophthalmology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
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Mosquera SA, Verma S. Effects of torsional movements in refractive procedures. J Cataract Refract Surg 2015; 41:1752-66. [DOI: 10.1016/j.jcrs.2015.07.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 01/13/2015] [Accepted: 01/14/2015] [Indexed: 11/26/2022]
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Bissen-Miyajima H, Negishi K, Hieda O, Kinoshita S. Microincision Hydrophobic Acrylic Aspheric Toric Intraocular Lens for Astigmatism and Cataract Correction. J Refract Surg 2015; 31:358-64. [DOI: 10.3928/1081597x-20150521-01] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 04/02/2015] [Indexed: 11/20/2022]
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