Journal of Cataract and Refractive Surgery

Purpose: To report results of Corneal Tissue Addition Keratoplasty (CTAK) for keratoconus and ectasia after LASIK.Setting: Cornea and refractive surgery practiceDesign: Single center, prospective, open label clinical trialMethods: Twenty-one eyes of 18 patients underwent CTAK. A tissue inlay of preserved corneal tissue was cut to customized specifications with a femtosecond laser and placed in a laser-created channel in the host cornea. Postoperative uncorrected and corrected distance visual acuity (UDVA, CDVA), manifest refraction spherical equivalent (MRSE), topographic mean keratometry (Kmean), maximum keratometry (Kmax), and the point of maximum flattening (Kmaxflat) were measured...

PURPOSE: In short eyes, to compare the predictive accuracy of newer intraocular lens (IOL) power calculation formulas using traditional and segmented axial length (AL) measurements. SETTING: Cullen Eye Institute, Baylor College of Medicine, Houston, TX and East Valley Ophthalmology, Mesa, AZ. DESIGN: Multi-center retrospective case series. METHODS: Measurements from an optical biometer were collected in eyes with AL < 22mm...

PURPOSE: To analyze new-onset mental and behavioral disorders and nervous system diseases in cataract patients implanted either with non-BLF or BLF IOLs in both eyes. SETTING: Department of Ophthalmology, Kymenlaakso Central Hospital, Kotka, Finland. DESIGN: A retrospective registry-based cohort study of patients operated between September 2007 and December 2018 who were followed until December 2021. We included 4986 patients who underwent bilateral cataract surgery...

PURPOSE: To evaluate the long term visual and refractive outcomes of hyperopic excimer ablation using alcohol-assisted PRK and femtosecond laser-assisted LASIK. SETTING: American University of Beirut Medical Center, Beirut, Lebanon. DESIGN: Retrospective, matched comparative study. METHODS: 83 eyes that underwent alcohol-assisted PRK and 83 matched eyes that underwent femtosecond laser-assisted LASIK for the correction of hyperopia were compared...

PURPOSE: To compare the predicted vault using machine learning with the achieved vault using the online manufacturer's nomogram in patients undergoing posterior chamber implantation with an implantable collamer lens (ICL). SETTING: Centro Oculistico Bresciano, Brescia, Italy and I.R.C.C.S. - Bietti Foundation, Rome, Italy. DESIGN: Retrospective multicenter comparison study. METHODS: This study included 561 eyes from 300 consecutive patients who underwent ICL placement surgery...

PURPOSE: To evaluate the long-term refractive outcomes of Eyecryl posterior chamber spherical phakic intraocular lens (pIOL) implantation in high myopia and endothelial cell density (ECD) change. SETTING: Beyoglu Eye Training and Research Hospital, Istanbul, Turkey. DESIGN: Retrospective. METHODS: Eyes that were not suitable for corneal refractive surgery, had high myopia between -6.00 diopters (D) and -20.00 D, had Eyecryl posterior chamber spherical pIOL implantation, and had at least 5 years of follow-up were included...

PURPOSE: To compare the accuracy of the Barrett toric calculator with measured and predicted posterior corneal astigmatism (MPCA and PPCA, respectively), the Abulafia-Koch formula (AK), and the toric Kane Formula. SETTING: Ein-Tal Eye Center, Tel Aviv, Israel. DESIGN: Retrospective cohort. METHODS: Consecutive cases of patients who underwent uneventful cataract extraction surgery with implantation of a toric intraocular lens between March 2015 to July 2019 were retrospectively reviewed...

PURPOSE: To demonstrate the importance of optical coherence tomography (OCT) in identifying macular changes not detected at clinical examination preceding cataract surgery in patients over 60 years of age. SETTING: Private practice, Santos, Brazil. DESING: Prospective case series. METHODS: Patients over 60 years of age were selected for this cross-sectional prospective study conducted during preoperative examination for cataract surgery...

PURPOSE: Democritus Digital Acuity & Reading Test (DDART) is a web-based application of visual acuity (VA) testing validated for near and intermediate distances, which introduces several advanced features such as text and camera calibration. DDART has also the functionality to support the assessment of dVA. The objective of this study was to validate the DDART as a dVA test against a series of prevalent conventional distance vision charts. SETTING: i) Ophthalmology Department, University Hospital of Alexandroupolis, Alexandroupolis, Greece, ii) Ophthalmology Department, AHEPA University Hospital, Thessaloniki, Greece, iii) Ophthalmica Institute of Ophthalmology & Microsurgery, Thessaloniki, Greece...

PURPOSE: To determine volume fill levels, estimated costs, and force expulsion requirements per bottle of topical ophthalmic NSAIDs commonly perioperatively in the United States. SETTING: Tertiary care academic medical center. DESIGN: Prospective laboratory investigation. METHODS: 8 commercially available NSAIDs (3 branded, 5 generic) were tested: branded bromfenac 0.07%, generic bromfenac 0.09%, diclofenac 0.1%, flurbiprofen 0...

PURPOSE: To evaluate role of a new parameter, iris root depth (IRD), in intraocular lens power calculation using ultrasound biomicroscopy (UBM) in primary angle-closure diseases (PACDs). And to compare the accuracy of six formulas Barrett Universal II (BUII), Haigis, Hill-Radial Basis Function (RBF) Version 3.0, Hoffer Q, Kane and Sanders Retzlaff Kraff/Theoretical (SRK)/T in PACDs. SETTING: Zhongshan Ophthalmic Center, Guangzhou, China. DESIGN: Retrospective consecutive case series...

PURPOSE: To present the results of a study investigating the 3-year effectiveness and safety of the Clareon single-piece intraocular lens (IOL). SETTING: 19 multinational sites. DESIGN: A prospective, multicenter, single-arm study. METHODS: Patients were bilaterally implanted with Clareon IOLs. Assessments included uncorrected distance visual acuity, corrected distance visual acuity (CDVA), manifest refraction, tilt, decentration, applanation tonometry, and fundus examination, including glistenings and posterior capsule opacification (PCO) evaluation...

PURPOSE: To determine the predictors of the postoperative horizontal trabecular iris angle (TIA750) after phakic posterior chamber implantable intraocular lens (IOL) surgery. SETTING: Ophthalmology Clinic Vista Sánchez Trancón. DESIGN: Retrospective case series. METHODS: This study included 330 eyes implanted with spherical/toric Implantable Collamer Lens (ICL). From 230 eyes implanted with 13.2 mm ICL, these were divided in modelling (n=180) and evaluation group (n=50)...

PURPOSE: Health care is estimated to be responsible for 5-10% of carbon emissions globally. Determining the CO2 emissions of medical interventions such as cataract surgery could provide opportunities for carbon reduction. The majority of cataract associated emissions are attributed to the procurement of surgical materials. Aim of this study was to analyse the cataract package variability in one country, namely Austria. SETTING: Austrian Departments of Ophthalmology...

PURPOSE: To develop a novel virtual surgery simulation platform to predict postoperative corneal stiffness (Kcmean) after laser vision correction (LVC) surgery. SETTING: Narayana Nethralaya eye hospital and Sankara Nethralaya, India; Humanitas Clinical and Research Center, Italy. DESIGN: Retrospective, observational case series. METHODS: 529 eyes from 529 patients from three eye centres and 10 post-SMILE ectasia eyes were included...

PURPOSE: To assess the repeatability and agreement between Scheimpflug-based corneal topography, Scansys and Pentacam, in measuring ocular parameters in myopic eyes. SETTING: A Grade-A tertiary hospital in Beijing, China. DESIGN: Cross-sectional study. METHODS: The following measurements were performed in 204 patients undergoing pre-operative examinations for refractive surgery from the corneal curvature, astigmatism, corneal thickness, corneal volume, corneal asphericity, anterior chamber depth and volume, and pupil diameters...

PURPOSE: To evaluate the one year visual and tomographic results of customized cross-linking using excimer laser assisted epithelium removal and topography-guided irradiation in the treatment of progressive keratoconus. SETTING: Coimbra Ophthalmology Unit. Private practice. Coimbra, Portugal. DESIGN: Prospective non-randomized clinical trial. METHODS: Eyes with documented progressive keratoconus were enrolled. Following de-epithelization with PTK, customized UV irradiation was performed, designed as 3 concentric circular areas centered on the thinnest point (Mosaic System, Avedro, USA)...

PURPOSE: To determine differences in cataract surgery outcomes between English proficient (EP) and limited English proficient (LEP) patients. SETTING: Sue Anschutz-Rodgers Eye Center, Aurora, Colorado. DESIGN: Retrospective. METHODS: Patients who underwent phacoemulsification at the Sue Anschutz-Rogers Eye Center between January 2014 and February 2020 were included. Patients who self-identified as needing or preferring an interpreter in medical encounters were defined as LEP...

Improvement in biometry and formulas have raised the bar for accurate IOL power calculation. However, when we look closely at the performance of a specific IOL model, we often find that the prediction error varies with the implant power. This phenomenon has no explanation other than the optic design of the IOL has shifted over the power range, thereby disrupting the assumptions of the calculations. By this report we call the industry to be more transparent and disclose the basic information about the IOL design that is important for accurate IOL power calculation...

PURPOSE: To assess predictability of tissue biomechanical stiffening induced by UV-A light mediated real-time assessment of riboflavin concentration during corneal cross-linking (CXL) of human donor tissues. SETTING: Studio Italiano di Oftalmologia, Italy. DESIGN: Laboratory study. METHODS: Twenty sclero-corneal tissues were randomly stratified to undergo CXL with either the epithelium intact (n=12) or removed (n=8)...