Kyungryul Seo

Purpose: To analyze the effects of soft contact lenses on central corneal thickness and morphologic characteristics of the corneal endothelium in diabetic patients. Materials and Methods: Ultrasound pachymetry and noncontact specular microscopy were performed on 26 diabetic patients who regularly use soft contact lenses (group 1), 27 diabetic patients who do not use soft contact lenses (group 2) and 30 normal subjects (group 3). We compared the values in each group using the Mann-Whitney test. R

Purpose: Goggles are frequently worn in the sport of swimming and are designed to form a seal around the periorbital tissue orbit. The resultant pressure on the eye may have the potential to affect intraocular pressure and blood flow of the optic nerve head. This study evaluates the influence of wearing swimming goggles on intraocular pressure (IOP) and blood flow of the ocular nerve head (ONH) in normal subjects. Materials and Methods: Thirty healthy participants took part in this study. The IO

Purpose: To compare the additive effects of two types of non-steroidal anti-inflammatory drugs (NSAIDs), bromfenac 0.1% or ketorolac0.45%, relative to topical steroid alone in cataract surgery. Materials and Methods: A total 91 subjects scheduled to undergo cataract operation were randomized into three groups: Group 1, pre/postoperative bromfenac 0.1%; Group 2, pre/postoperative preservative-free ketorolac 0.45%; and Group 3, postoperative steroid only, as a control. Outcome measures included in

Purpose: To evaluate reliability of Fourier-domain optical coherence tomography (OCT) (RTVue), time-domain OCT (Visante), and slit-lamp adapted ultrasonic pachymetry (SL-US) in the measurement of central corneal thickness (CCT). Materials and Methods: Thirty healthy volunteers visited our clinic 3 times and fifty eyes were measured by one physician. RTVue and Visante were randomly performed, and then SL-US, in which the ultrasound probe was inserted into the Goldmann tonometry mount, was done. D

Immunogenicity of dendritic cell-derived exosomes stimulated with Toxoplasma gondii lysates (TLA exo), mixed with cholera toxin as an adjuvant, was investigated in mice immunized via 2 mucosal routes (ocular vs intranasal). BALB/c mice were injected 3 times with TLA exo vaccine at 2 week interval, and the levels of IgG in serum and IgA in tear, saliva, feces, and vaginal wash were measured. To observe the expression of T. gondii-specific B1 gene, mice infected with ME49 T. gondii cysts were immu

Purpose: To investigate biomechanical properties of the cornea using a dynamic Scheimpflug analyzer according to age. Materials and Methods: In this prospective, cross-sectional, observational study, participants underwent ophthalmic investigationsincluding corneal biomechanical properties, keratometric values, intraocular pressure (IOP), and manifest refraction sphericalequivalent (MRSE). We determined the relationship of biomechanical parameters and ocular/systemic variables (participant’sage,

Purpose: To compare preoperative and postoperative ocular biometry in patients with iris-fixated phakic intraocular lens (pIOLs): Artisan and Artiflex. Materials and Methods: This study included 40 eyes with Artisan and 36 eyes with Artiflex pIOL implants. Anterior chamber depth (ACD) and axial length (AL) were measured by applanation ultrasonography (A-scan) and partial coherence interferometry (IOLMaster) preoperatively and 3 months after pIOL implantation. Results: ACD measurements after Arti

Purpose: To evaluate the accuracy of the Kane formula for intraocular lens (IOL) power calculation in comparison with existing formulas by incorporating optional variables into calculation. Materials and Methods: This retrospective review consisted of 78 eyes of patients who had undergone uneventful phacoemulsification with intraocular implantation at Severance Hospital in Seoul, Korea between February 2020 and January 2021. The Kane formula was compared with six of the existing IOL formulas (SR

목적 : 익상편 수술에 있어 결막소판술(conjunctival mini-flap technique)과 자가결막이식술의 재발률을 비교하고, 재발에 관여하는 인자를 알아보고자 하였다. 대상과 방법 : 2001년 3월부터 2004년 2월까지 본원에서 익상편으로 결막소판술을 시행받은 환자 49명 49안과 자가결막이식술을 받은 환자 41명 41안을 대상으로 재발률과 재발에 관여하는 인자를 후향적으로 조사하였다. 결과 : 결막소판술로 수술받은 환자들의 경우 평균 8.79±3.9개월의 추적관찰기간동안 3명 3안(7.1%)에서 재발을 보였고, 자가결막이식술을 받은 환자들의 경우 평균 12.7±6.5개월의 추적관찰기간동안 9명 9안(21.9%)에서 재발을 하였다. 각 수술방법에 있어 연령이나 성별, 재수술여부와 재발과는 유의한 연관성이 없었다. 결론 : 익상편수술에 있어 결막소판술이 자가결막이식술보다도 낮은 재발률을 보이면서 심각한 합병증을 유발하지 않는 효과적이고 안전한 수술방법임을 확인할 수 있

Purpose: To compare corneal sensitivity and recovery of corneal innervations after a temporal clear corneal incision in cataract surgery. Methods: We measured changes to corneal sensitivity using Cochet-Bonnet esthesiometer in 25 eyes of 20 patients and analyzed corneal nerve density with confocal microscopy in 20 eyes of 20 patients who had undergone cataract surgery. The parameters were measured before, and at 1 week, 1 month, and 3 months after cataract surgery. Results: The mean preoperative

Purpose: The visual performance of pseudophakic eyes depends on the type of intraocular lenses (IOLs) that are implanted. Aspherical and multifocal IOLs have recently been developed to improve visual quality after cataract surgery, but multifocal IOLs can be associated with decreased contrast sensitivity (CS), halos, and glare. This study compares the visual performance of monofocal and multifocal IOLs by measurement of higher-order aberrations (HOAs) and CS values. Materials and Methods: HOAs a

목적: 두 종류의 일체형 비구면 인공수정체를 삽입한 백내장 수술 환자를 대상으로 Double pass 원리를 적용한 분석기를 이용하여임상결과를 비교하고자 하였다. 대상과 방법: 본원에서 2009년 10월에서 2011년 2월까지 백내장 수술을 시행 받은 25안의 Tecnis® ZCB00 (AMO, Inc., Santa Ana,CA, USA) 삽입 군과 16안의 Acrysof® IQ SN60WF (Alcon, Inc., Fort Worth, TX, USA) 삽입 군을 대상으로 술 후 6개월째 나안시력및 최대교정시력, 구면 대응치를 측정하고 Double pass 원리를 적용한 Optical quality analysis system (OQAS, Visiometrics SL,Spain)을 이용하여 변조전달기능(MTF cutoff), Strehl 비율(Strehl ratio), 객관적 산란지수(OSI) 값을 측정하고 차이를 비교해 보았다. 결과: ZCB00 삽입 군과 SN60WF삽입 군에서의

Purpose: To compare the astigmatic power of toric intraocular lenses (IOLs) obtainedfrom the AcrySof, TECNIS, and iTrace toric calculator in patients with preoperativewith-the-rule (WTR) or against-the-rule (ATR) corneal astigmatism. Materialsand Methods: Fifty eyes with cataract and corneal astigmatism greater than 0.75 diopters were enrolled in each group (WTR and ATR). Keratometric values were measured using autokeratometry, an IOLMaster, and an iTrace, which incorporatedcorneal topography an

Purpose: The objective was to evaluate the effect of co-implantation of a preloaded capsular tension ring (CTR) and aberration-free monofocal intraocular lens (IOL) on clinical outcomes and visual quality after cataract surgery. Materials and Methods: Patients who underwent cataract surgery were randomized into two groups that were implanted with a CTR and IOL (group 1, 26 eyes) or an IOL only (group 2, 26 eyes). At 1 and 3 months after surgery, visual acuity, refractive errors, refractive predi