Comparison of accuracy and axial length acquisition success rate by three types of swept-source OCT-based biometers.

Purpose: To compare three biometers equipped with swept-source optical coherence tomography (OCT), including ARGOS (OCTB1), IOLMaster 700 (OCTB2), and Anterion (AS-OCTB). The primary aim was to assess the axial length (AL) acquisition success rates, and secondary aims included comparing parameters obtained from the three devices and evaluating postoperative refractive prediction errors.

Setting: Chukyo Eye Clinic, Nagoya, Japan.

A Multicenter Study on Clinical Outcomes of Simultaneous Implantable Collamer Lens Removal and Phacoemulsification with Intraocular Lens Implantation in Eyes Developing Cataract.

Introduction: This study evaluated the clinical outcomes of simultaneous implantable collamer lens (ICL) removal and phacoemulsification with intraocular lens (IOL) implantation in a multicenter study.

Methods: We retrospectively investigated 83 eyes of 72 patients requiring ICL extraction and cataract surgery at five institutions. Preoperatively and 3 months postoperatively, we determined visual acuity (logMAR), spherical equivalent refraction, and endothelial cell density (ECD), in addition to the preoperative backgrounds and the postoperative complications.

Visual Outcomes After Cataract Surgery With the Light Adjustable Lens in Japanese Patients With and Without Prior Corneal Refractive Surgery.

Purpose: To describe Light Adjustable Lens (RxSight, Inc) (LAL) visual and refractive outcomes in a Japanese patient population with and without prior refractive surgery.

Methods: In this retrospective chart review of patients with cataract in a private eye clinic, 34 eyes from 21 patients underwent cataract surgery with LAL implantation. Eyes underwent light treatment to adjust the patients' refraction after implantation to meet individual visual goals.

Near Add Power of Glaucoma Patients with Early Presbyopia.

Glaucoma medication may accelerate the progression of presbyopia. The aim of this study was to compare presbyopia between controls and patients with glaucoma in their 40s. This was a cross-sectional study of bilateral phakic participants aged between 40 and 49, which included controls ( = 114, mean age 46.

Effect of Intraocular Lens Power Calculation Formula Optimization in the Sum-of-Segments Optical Biometer.

Purpose: We evaluated the effect of optimization of the intraocular lens (IOL) power calculation formula SRK/T and Barrett Universal II (BU II) in long eyes (≥26 mm: group L) and short eyes (≤22 mm: group S) using axial length calculated from segmented refractive indices (SRI).

Setting: Multicenter study at five sites in Japan.

Design: Retrospective observational study.

Accuracy of the Majority Voting Method with Multiple IOL Power Formulae.

Purpose: This study aimed to evaluate the efficacy of a majority decision algorithm that integrates intraoperative aberrometry (IA) and two intraocular lens (IOL) frequency formulas. The primary objective was to compare the accuracy of three formulas (IA; Sanders, Retzlaff, and Kraff/Theoretical (SRK/T); and Barrett Universal II (BUII)), in achieving emmetropia in eyes implanted with TFNT lenses (Alcon).

Patients And Methods: A total of 145 eyes of 145 patients were included in the evaluation.

Accuracy of new intraocular lens power calculation formula for short and long eyes using segmental refractive indices.

Purpose: To evaluate the accuracy of a new intraocular lens power calculation formula using segmental refractive index-based axial length (AL).

Setting: Chukyo Eye Clinic, Nagoya, Japan.

Design: Retrospective observational study.

Gender-based differences in the job titles and lifestyles in the cataract and refractive surgery society in Japan.

To investigate sex differences in the titles and lifestyles of Japanese ophthalmologists, we evaluated work places and private lives. Retrospective cross-sectional study. The study included 1721 members (1344 males and 377 females) of the Japanese Society of Cataract and Refractive Surgery.

Comparison of INTREPID® balanced and hybrid tips on anterior capsule rupture in ex vivo porcine eyes.

Phacoemulsification has emerged as the global standard for cataract surgery, and various novel methods, tools, and agents have promoted surgical efficiency and reduced complications. Conventionally, the phaco tip, which cleaves and aspirates the cataractous lens, has been mainly constructed of metal. In this study, the risk of anterior capsule rupture was evaluated under conditions of different power modes, longitudinal (Mode-L), torsional (Mode-T), or both (Mode-LT), and different aspiration powers (0 or 200 mmHg), using a traditional metal phaco tip (Group-M) or a new phaco tip with a high-strength polymer overmold on the needle edge (Group-P), which was developed to reduce the risk of capsule rupture.

Flexural and Cell Adhesion Characteristic of Phakic Implantable Lenses.

: In this study, we aimed to compare the physical properties of hole-implantable collamer lenses (H-ICLs) and implantable phakic contact lenses (IPCLs) and investigate their flexural and cell adhesion characteristics. : Transverse compression load to achieve lens flexion and static Young's modulus were measured in H-ICLs and IPCLs using designated equipment. Load was measured both with and without restraining the optic section of the lenses.

Comparison of the efficacy and invasiveness of manual and automated gonioscopy.

Purpose: To compare the efficacy and invasiveness of manual gonioscopy and automated 360-degree gonioscopy.

Method: Manual and automated gonioscopy were performed on 70 patients with glaucoma. Manual gonioscopy was performed by a glaucoma specialist and an ophthalmology resident, and automated gonioscopy (GS-1) was performed by orthoptists.

Clinical Performance of a Hydrophobic Acrylic Diffractive Trifocal Intraocular Lens in a Japanese Population.

Introduction: In this study, clinical performance of a hydrophobic acrylic diffractive trifocal intraocular lens (IOL) with double C-loop haptics was evaluated in Japanese cataract eyes.

Methods: Twenty-three patients had bilateral cataract surgery with the implantation of a trifocal IOL with double C-loop haptics. Postoperative examinations at 6 months included assessing uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA) at 5 m, uncorrected intermediate visual acuity (UIVA), distance-corrected intermediate visual acuity (DCIVA) at 80 cm, uncorrected near visual acuity (UNVA) and distance-corrected near visual acuity (DCNVA) at 40 cm.

Posterior chamber phakic intraocular lens implantation after laser in situ keratomileusis.

Background: To assess the multicenter outcomes of posterior chamber phakic intraocular lens implantation with a central hole (EVO-ICL, STAAR Surgical) for patients undergoing previous laser in situ keratomileusis (LASIK).

Methods: This case series enrolled 31 eyes of 21 consecutive patients undergoing EVO-ICL implantation to correct residual refractive errors after LASIK at 7 nationwide major surgical sites. We investigated safety, efficacy, predictability, stability, and adverse events at 1 week, 1, 3, and 6 months postoperatively, and at the final visit.

Multicenter clinical outcomes of hole implantable collamer lens implantation in middle-aged patients.

To assess the multicenter clinical outcomes of the implantation of hole implantable collamer lens (Hole ICL, ICL KS-AquaPORTTM; STAAR Surgical, Nidau, Switzerland) in patients of 45 years or more. We retrospectively assessed the surgery's safety, efficacy, predictability, stability, and adverse events before surgery and after the surgery at 1 week; 1, 3, and 6 months; and 1 year, followed by once every year for approximately 2.2 years.

Treatment of old submacular hemorrhage by subretinal endoscopic surgery and intraoperative subretinal endoscopic findings.

Purpose: We report a case of old submacular hemorrhage (SMH) due to polypoidal choroidal vasculopathy (PCV). Subretinal endoscopic surgery (SES) was performed, which improved visual function. In addition, we show the intraoperative findings of subretinal aberrant PCV vessels as seen under endoscopic observation, which cannot be observed by microscopic surgery.

Multicenter survey on implantable collamer lens dislocation.

This study aimed to investigate the incidence, patient background, and postoperative prognosis of implantable collamer lens (ICL) dislocation. We retrospectively reviewed all cases of ICL dislocation at four major refractive surgery centers in Japan until December 2019. The incidence, patient background, cause of dislocation, complications of repositioning surgery, and postoperative visual function were investigated.

Rotational stability and clinical outcomes of a new one piece toric intraocular lens with anchor-wing haptics.

Background: To evaluate the safety and efficacy of a new toric intraocular lens (IOL) with anchor-wing haptics.

Methods: The new toric IOL with anchor-wing haptics (NS60YT, NIDEK Co., Ltd.

Age-related changes of color visual acuity in normal eyes.

Purpose: To evaluate the age-related change in color visual acuity (CVA) in normal eyes.

Methods: In total, 162 normal eyes (162 subjects, women: 52, men: 110, age range: 15-68 years) with best-corrected visual acuity (BCVA) ≥20/13 were enrolled. Fifteen colors from the New Color Test (chroma 6) were applied to Landolt "C" rings, white point D65 was applied as background, and a luminance of 30 cd/m2 was set for both the rings and the background.

Screening of Keratoconus Using Autokeratometer and Keratometer Keratoconus Index.

The keratometer keratoconus index (KKI) is a diagnostic index for the risk of keratoconus calculated from autokeratometer test values. We partially modified the KKI equation and assessed it without limiting the target age and severity of keratoconus. This retrospective study included 179 eyes of 99 patients with keratoconus and 468 eyes from 235 normal controls.

Refractive prediction error in cataract surgery using an optical biometer equipped with anterior segment OCT.

Purpose: To evaluate refractive error after cataract surgery using an optical biometer equipped with anterior segment optical coherence tomography (AS-OCT).

Setting: Chukyo Eye Clinic, Nagoya, Japan.

Design: Retrospective observational design.

Early Clinical Outcomes of Intrascleral Fixation Using an Intraocular Lens with Hook-Shaped Haptics.

Purpose: In this study, we aimed to report on the early results of intrascleral intraocular lens (IOL) fixation using a hook-shaped haptic IOL (hsh-IOL).

Patients And Methods: We enrolled 27 consecutive eyes of 27 patients (mean age, 74±11.4 years) who underwent intrascleral IOL fixation with an hsh-IOL and were followed-up for 3 months postoperatively.

Clinical Outcomes of Endoscope-Assisted Vitreous Surgery for Giant Retinal Tear Detachment.

Introduction: With the advent of perfluorocarbon liquid (PFCL), the success rate of refractory giant retinal tear (GRT) detachment has dramatically improved. PFCL is a very effective tool when used properly, but in GRT detachment, it may move under the retina through the tear, so it is necessary to devise ways to prevent PFCL from migrating under the retina. Ophthalmic endoscope-assisted vitrectomy may reduce the risk of subretinal migration of PFCL, facilitate safer use of PFCL, and increase the success rate of GRT detachment.

SUBRETINAL ENDOSCOPIC SURGERY FOR METASTATIC CHOROIDAL TUMOR.

Purpose: To report a case of a metastatic choroidal tumor treated with subretinal endoscopic surgery.

Methods: A single case report.

Results: A 68-year-old woman presented with a metastatic choroidal tumor in the right eye and an intraocular pressure of 54 mmHg.