Cataract Surgery Practice in the Republic of Korea: A Survey of the Korean Society of Cataract and Refractive Surgery 2020.

Purpose: To describe current cataract surgery practice patterns and trends among Korean ophthalmologists.

Methods: A survey was conducted among members of the Korean Society of Cataract and Refractive Surgery in October 2020. Of the 998 questionnaires, 262 (26.

Long-term (≥10 years) results of corneal endothelial cell loss after cataract surgery.

Objective: To investigate the extent of long-term corneal endothelial loss after uneventful cataract surgery and the factors associated with decreases in corneal endothelial cell density (ECD).

Design: Retrospective case series.

Participants: Patients who had undergone uncomplicated cataract surgery.

Application of thermoreversible hydrogel (poloxamer 407) to protect the corneal endothelium during phacoemulsification in porcine and rabbit eyes.

Purpose: To evaluate the effectiveness of thermoreversible (poloxamer) hydrogels as a substitute for ophthalmic viscosurgical devices (OVDs) during phacoemulsification in porcine and rabbit eyes and compare their endothelial protective effect with that of hyaluronic acid-based OVDs.

Setting: Department of Ophthalmology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, South Korea.

Design: Experimental study.

In-and-out technique for intraocular lens scleral fixation.

We describe a modified scleral fixation method to facilitate the good centration and adequate tension of sutures at both ends with addition of an internal fixation knot that reduces decentering of the IOL in a patient with postsurgical aphakia. Using an ab externo suture technique to fixate the haptics to the scleral wall, an additional loop knot is tied 1 mm next to the fixation knot at the haptic. In the technique, an internalized suture and an additional suture knot is tied while holding it close to the fixation knot at the haptic using a needle holder or McPherson forceps.

Anti-inflammatory Effects of Extract On Endotoxin-induced Uveitis in Lewis Rats.

Purpose: Recent studies have reported the anti-inflammatory effect of . We investigated the anti-inflammatory effect of sinomenine on endotoxin-induced uveitis in a rat model.

Methods: Endotoxin-induced uveitis was induced in rat by lipopolysaccharide (LPS) immunization.

Comparison of two Nd:YAG laser posterior capsulotomy: cruciate pattern circular pattern with vitreous strand cutting.

Aim: To investigate the effects and safety of neodymium: yttrium-aluminium-garnet (Nd:YAG) laser posterior capsulotomy with vitreous strand cutting.

Methods: A total of 40 eyes of 37 patients with symptomatic posterior capsular opacity (PCO) were included in this prospective randomized study and were randomly subjected to either cruciate pattern or round pattern Nd:YAG posterior capsulotomy with vitreous strand cutting (modified round pattern). The best corrected visual acuity (BCVA), intraocular pressure (IOP), refractive error, endothelial cell count (ECC), anterior segment parameters, including anterior chamber depth (ACD) and anterior chamber angle (ACA) were measured before and 1mo after the laser posterior capsulotomy.

Effects of senofilcon A mechanical protector on corneal endothelial cells during phacoemulsification in rabbit eyes: Pilot study.

Purpose: To evaluate the effects of a senofilcon A mechanical protector against corneal endothelial cell damage induced by phacoemulsification in rabbit eyes.

Setting: Department of Ophthalmology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, South Korea.

Design: Experimental study.

Recurrent late-onset fibrotic capsular block syndrome after neodymium-yttrium-aluminum-garnet laser anterior capsulotomy: a case report.

Background: Capsular block syndrome is an uncommon complication that occurs after cataract surgery. It is characterized by capsular distension, anterior intraocular lens displacement, anterior chamber shallowing, and unexpected myopic shifts. We report a case of recurrent fibrotic capsular block syndrome with Elschnig's pearl-type posterior capsule opacification 10 months after neodymium-yttrium-aluminum-garnet (Nd:YAG) laser anterior capsulotomy.

Comparison of Optical Coherence Tomography Measurement Reproducibility between Children and Adults.

Purpose: To compare the reproducibility of SD-OCT (spectral-domain optical coherence tomography) measurements of RNFL (retinal nerve fiber layer) and macular thickness between children and adults.

Methods: Seventy-one eyes of 71 children and 71 eyes of 71 adults were prospectively enrolled. RNFL and macular thicknesses were measured by one operator, with a brief rest between measurements.

Anterior chamber depth and refractive change in late postoperative capsular bag distension syndrome: a retrospective analysis.

Purpose: To assess the characteristic findings and effects of laser capsulotomy in patients with late postoperative capsular bag distension syndrome (CBDS).

Methods: Twenty patients diagnosed with late postoperative CBDS between July 2010 and August 2013 were retrospectively reviewed. Before and 1 week after capsulotomy, changes in the anterior chamber depth (ACD) were assessed using ultrasound biomicroscopy.

Thermal imaging comparison of Signature, Infiniti, and Stellaris phacoemulsification systems.

Background: To compare the heat production of 3 different phacoemulsification machines under strict laboratory test conditions. More specifically, the thermal behavior was analyzed between the torsional modality of the Infiniti system and longitudinal modalities of the Abbot WhiteStar Signature Phacoemulsification system and Bausch and Lomb Stellaris system.

Methods: Experiments were performed under in-vitro conditions in this study.

Satisfaction level of physicians who have undergone corneal refractive surgery.

Purpose: To evaluate the levels of satisfaction among physicians who have undergone corneal refractive surgery.

Methods: This study included 212 eyes of 107 consecutive patients who underwent laser in situ keratomileusis or laser sub-epithelial keratomileusis surgery. Patients were divided into two groups: one group of physicians and one group of other healthcare workers (HCWs).

Myopic shift of foldable acrylic intraocular lenses after sulcus fixation.

Aims: The aim of this retrospective study was to identify factors affecting myopic shift from predicted values of refraction after sulcus fixation of foldable acrylic intraocular lenses (IOLs).

Methods: A total of 91 eyes from 91 consecutive patients, each of whom underwent primary implantation of sulcus-fixated foldable acrylic IOLs, were assessed. AcrySof MA60BM and Sensar AR40e multi-piece IOLs, and AcrySof SA60AT and BioVue single-piece IOLs were implanted.

Cosmetic improvement of nevus of Ota by scleral allograft overlay.

Objective: To report surgical outcome of a new therapeutic technique for nevus of Ota by scleral allograft overlay.

Design: Noncomparative clinical interventional study.

Participants: Eight eyes of 7 patients with scleral nevus of Ota.

Five-year results of corneal tattooing for cosmetic repair in disfigured eyes.

Purpose: To investigate the 5-year results of corneal tattooing for cosmetic repair in disfigured eyes and identify the risk factors associated with complications.

Methods: Corneal tattooing was performed in patients with stable corneal opacity and blind eyes. A total of 147 eyes of 147 patients who were followed up for at least 5 years after tattooing were enrolled in the study.

Intraocular lens power calculation using IOLMaster and various formulas in short eyes.

Purpose: To evaluate the predictability of intraocular lens (IOL) power calculations using the IOLMaster and four different IOL power calculation formulas (Haigis, Hoffer Q, SRK II, and SRK/T) for cataract surgery in eyes with a short axial length (AL).

Methods: The present study was a retrospective comparative analysis which included 25 eyes with an AL shorter than 22.0 mm that underwent uneventful phacoemulsification with IOL implantation from July 2007 to December 2008 at Seoul National University Boramae Hospital.

The epidemiology of cosmetic treatments for corneal opacities in a Korean population.

Purpose: To describe etiologies and clinical characteristics of corneal opacities leading patients to seek cosmetic treatments.

Methods: The medical records of 401 patients who presented for cosmetic improvement in corneal opacities between May 2004 and July 2007 were retrospectively reviewed. The following parameters were analyzed: age, gender, cause of corneal opacity, time course of the corneal disease, associated diseases, prior and current cosmetic treatments, visual acuity, location and depth of the corneal opacity, and the presence of either corneal neovascularization or band keratopathy.

Ultrasound energy in phacoemulsification: a comparative analysis of phaco-chop and stop-and-chop techniques according to the degree of nuclear density.

Background And Objective: To evaluate the amount of ultrasound energy used, corneal endothelial cell loss, and central corneal thickness using the phaco-chop and stop-and-chop techniques for cataracts with different degrees of nuclear density.

Patients And Methods: One hundred two eyes of 51 patients with bilateral senile cataract were included. Each eye was randomly assigned to have either phaco-chop or stop-and-chop nucleofractis during phacoemulsification.

Effects of dietary glucose level during late gestation on litter performance and glucose concentration in sows.

The effects of feeding glucose during the 5 days before parturition on litter performance and on glucose concentration in sows were studied. At day 100 of gestation, 130 multiparous sows were assigned to the treatments. Late gestating sows were fed 0 g, 150 g, 250 g, 350 g and 450 g of glucose a day, respectively.

Heat production: Longitudinal versus torsional phacoemulsification.

Purpose: To compare the heat production of longitudinal versus torsional phacoemulsification under strict laboratory test conditions.

Setting: Department of Ophthalmology, David Geffen School of Medicine at UCLA, and Jules Stein Eye Institute, Los Angeles, California, USA.

Methods: Two Infiniti phacoemulsification handpieces were inserted into silicone test chambers filled with a balanced salt solution and imaged serially using a thermal camera.

Comparison of vacuum rise time, vacuum limit accuracy, and occlusion break surge of 3 new phacoemulsification systems.

Purpose: To compare vacuum rise time, vacuum limit accuracy, and occlusion break surge of 3 new phacoemulsification machines.

Setting: Jules Stein Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.

Methods: The vacuum rise time under normal and enhanced aspiration modes, vacuum limit accuracy, and occlusion break surge of the Infiniti Vision System, Stellaris Vision Enhancement System, and WhiteStar Signature Phacoemulsification System were tested.