Intraocular lenses

PURPOSE: To evaluate spherical intraocular lens (IOL) implantation for cataracts in keratoconic eyes followed by optional refractive toric lens exchange to improve uncorrected visual acuity. METHODS: This retrospective study evaluated cataract surgery outcomes in keratoconic eyes. Eyes treated with a spherical IOL targeted for -2.00 diopters (D) either achieved acceptable manifest refraction and desired exchange with a toric IOL (Group 1); achieved satisfactory manifest refraction and chose to use spectacles or contact lenses (Group 2); or did not achieve acceptable refraction and used contact lenses (Group 3)...

PURPOSE: To investigate the effect of age on visual outcomes after the bilateral implantation of trifocal intraocular lenses (IOLs). METHODS: A total of 290 patients (580 eyes) who underwent bilateral implantation of a trifocal IOL were enrolled in this retrospective case-control study. Patients were divided into five age groups: 45 to 49, 50 to 54, 55 to 59, 60 to 64, and 65 years and older. Postoperative monocular uncorrected and corrected distance visual acuity (UDVA and CDVA, respectively), uncorrected near visual acuity (UNVA), binocular distance-corrected defocus curve, spectacle dependence for near and distance vision, and patient satisfaction scores were compared among the five groups...

OBJECTIVES: To assess the visual improvement and mean residual astigmatism in patients who underwent cataract surgery with toric intraocular lens. METHODS: The retrospective, observational study was conducted at the Department of Ophthalmology, Aga Khan University Hospital, Karachi, and comprised data from January 1, 2018, to December 31, 2020, related to adult patients who had regular astigmatism of at least 0.75D and underwent cataract surgery with toric intraocular lens implantation using a digital marker...

INTRODUCTION: The PRESERFLO™ MicroShunt (PMS) has been proven to significantly lower intraocular pressure (IOP) in patients with glaucoma and has been available for use since 2019. With increasing published evidence and growing experience of glaucoma surgeons, the aim of this modified Delphi panel was to build on the findings of a previous Delphi panel conducted in 2021 and provide further guidance on the role of the PMS to treat patients with glaucoma in Europe. METHODS: Thirteen European glaucoma surgeons experienced in the PMS procedure participated in a 3-round modified Delphi panel...

PURPOSE: To evaluate clinical outcomes after bilateral or contralateral implantation of the Gemetric™ (G) and Gemetric™ Plus (GPlus) diffractive trifocal intraocular lenses (IOLs). METHODS: This was a prospective, randomized, multi-center open-label study comparing clinical results and subjective patient responses around 6 months after implantation of the study lenses (toric and non-toric) in three different groups (bilateral G, bilateral GPlus and contralateral G/GPlus implantation)...

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PURPOSE: To describe the morphology and postoperative outcomes of pediatric cataracts with thin (leptophakic) lenses. DESIGN: Retrospective comparative clinical cohort study. METHODS: We identified the records of pediatric patients who had undergone cataract surgery between 2018-2023 and lens thickness less than two standard deviations of age-stratified normal eyes in the general population. Matching controls were identified based on sex, age at surgery, and intraocular lens implant status...

INTRODUCTION: This study is a retrospective case series to compare the accuracy of the Barrett toric calculator using predicted posterior corneal astigmatism (PCA) and PCA measurements using swept-source optical coherence tomography (SS-OCT) and a Scheimpflug camera. This evaluation was conducted across different types of anterior and posterior astigmatism. METHODS: A total of 146 eyes from 146 patients implanted with toric intraocular lenses were included. Mean absolute prediction error, standard deviation of prediction error, and the percentage of eyes with prediction errors within ±0...

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INTRODUCTION: This report describes a case of elevated intraocular pressure following the use of 0.125% atropine eye drops in a child wearing orthokeratology lenses. CASE PRESENTATION: A 9-year-old boy presented to our clinic with myopia, and he had been wearing orthokeratology lenses overnight for 23 months. He was treated previously with a once-daily administration of topical 0.125% atropine eye drops to reduce myopic progression. Three days after treatment, his intraocular pressure was 36 mm Hg in the right eye and 32 mm Hg in the left eye...

INTRODUCTION AND IMPORTANCE: Paecilomyces species are rare fungi that are resistant to standard treatment and have increasing clinical relevance. The Purpureocillium lilacinum, formerly known as Paecilomyces lilacinus, has a unique sensitivity for the corneal surface. However, only a few cases have been documented globally. This case report presents the successful management of a patient with Paecilomyces lilacinus keratitis with topical voriconazole and oral itraconazole. CASE PRESENTATION: A 40-year-old woman came to our ophthalmology clinic complaining of right eye pain due to a severe corneal infection in her right eye...

Here, we present a full wave propagation model that quantitatively assesses the effect of astigmatism on visual functions in eyes with diffractive bifocal IOLs. The proposed model with bifocal IOLs evaluated the image quality of each focus at varying degrees of corneal astigmatism with the metrics of modulation transfer function and light-in-the-bucket. The results show that corneal astigmatism alters the distance-near image quality balance. Positive (negative) astigmatism has more detrimental effects on far (near) vision...

BACKGROUND: To assess clinical outcomes after implanting toric, extended-depth-of-focus intraocular lenses (IOLs) to correct low corneal astigmatism in eyes with cataracts. METHODS: 47 eyes were implanted with the AcrySof IQ Vivity Toric DFT215 IOL. Main outcome measures were refractive error, monocular uncorrected and corrected distance (UDVA/CDVA), uncorrected and distance-corrected intermediate (UIVA/DCIVA), and uncorrected near and distance-corrected near (UNVA/DCNVA) visual acuities, monocular defocus curve, rotational stability, and IOLSAT and QUVID questionnaires...

PURPOSE: To present the outcomes of a new technique for intrascleral fixation of a flanged three-piece foldable intraocular lens (IOL) without a conjunctival incision. MATERIALS AND METHODS: We retrospectively reviewed a consecutive series of 12 eyes of 12 patients who underwent scleral IOL fixation using this technique. RESULTS: The follow-up period ranged 3-12 months. There was a significant improvement in best-corrected visual acuity, from 0...

No abstract text is available yet for this article.

PURPOSE: To investigate the relationship between intraocular pressure (IOP) and axial length (AL) and to compare the refractive predicted error in patients who have undergone cataract surgery alone or in combination with trabeculotomy. SETTING: Hospital. DESIGN: Single-center, retrospective, case-control. METHODS: The medical records of patients who had undergone cataract surgery alone or in combination with trabeculotomy using the Tanito microhook were retrospectively reviewed...

PURPOSE: The aim of the study was to map the behavior of ophthalmologists regarding protective equipment during the COVID-19 pandemic (coronavirus disease 2019), both during the time of the mandatory restrictive measures and after their relaxation. Another aim was to evaluate the awareness of ophthalmologists in the Czech Republic about the possible impact of nose and mouth protective measures (masks, respirators) on the quality of eye examinations, especially on the results of standard automated perimetry (SAP) and intraocular pressure (IOP) measurement...

PURPOSE: To evaluate the clinical outcomes of the toric version of a presbyopia-correcting intraocular lens (IOL) based on the combination of a diffractive-based extended depth of focus (EDOF) pattern and a diffractive multifocal platform. SETTING: Miranza COI Bilbao, Spain. DESIGN: Prospective case series. METHODS: Thirty-five patients (51-84 years) with corneal astigmatism ranging from 0.75 to 2.19 D undergoing bilateral cataract surgery with implantation of the Synergy™ Toric II IOL (Johnson & Johnson Vision, Jacksonville, Florida, USA) were evaluated during a 3-month follow-up...

OBJECTIVE: Aim of this study was to use a combination of partial least squares regression and a machine learning approach to predict IOL tilt using pre-operative biometry data. SETTING: Patients scheduled for cataract surgery at the Kepler University Clinic Linz. DESIGN: Prospective single center study. METHODS: Optical coherence tomography, autorefraction and subjective refraction was performed at baseline and 8 weeks after cataract surgery...

INTRODUCTION: This study aimed to determine the interchangeability of bilateral anterior chamber depth (ACD) in intraocular lens (IOL) power calculations for cataractous eyes and refractive outcomes using the unaffected fellow-eye ACD in lens subluxation. METHODS: The predicted postoperative spherical equivalent (SE) calculated using the Kane formula with and without fellow-eye ACD in 202 cataract patients was compared. Refractive outcomes of the newer formulas (the Kane, Barrett Universal II (BUII), and Pearl-DGS formulas) with affected-eye ACD and with unaffected fellow-eye ACD were compared in 33 eyes with lens subluxation (the affected eye) undergoing in-the-bag IOL implantation...