Publications by authors named "Je-Hyung Hwang"

: Posterior capsular opacification (PCO) is the most common long-term complication of successful cataract surgery and can cause visual impairment. We aimed to investigate the effects of intraocular lens (IOL) characteristics on PCO by comparing the incidence of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser capsulotomy for different types of intraocular lenses. : A retrospective analysis was performed on 2866 eyes that underwent cataract surgery between January 2010 and December 2017, with at least 5 years of follow-up.

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Purpose: To investigate the prevalence and risk factors of age-related macular degeneration features among pilots of Republic of Korea Air Force.

Methods: This retrospective, cross-sectional study was performed with a total of 2781 Republic of Korea Air Force pilots who underwent regular medical examinations between 2020 and 2021. Age-related macular degeneration features were determined and graded by fundus photographs.

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Purpose: Postmenopausal women have a higher prevalence of cataracts than men of a similar age. This study aimed to evaluate the effects of menopausal hormone therapy (MHT) on lens opacities in postmenopausal women.

Methods: This retrospective cohort study analysed population-based health insurance data in South Korea collected from 2002 to 2019.

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This study aimed to report the risk factors and treatment outcomes of visually disturbing vitreous opacities after neodymium-doped yttrium aluminum garnet (Nd:YAG) laser posterior capsulotomy. This was a retrospective observational case series study that included 6 patients who underwent vitrectomy for vitreous opacities after Nd:YAG laser capsulotomy. The patients' medical records from January 2017 to June 2020 were reviewed.

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Purpose: This study reported 11 cases of new-onset acute uveitis following coronavirus disease 2019 (COVID-19) vaccination.

Methods: This retrospective observational case study included 11 eyes of 11 patients with acute uveitis after the COVID-19 vaccination. We only included patients with new-onset uveitis.

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Purpose: We report a case of corneal verticillata in a patient who had been taking raloxifene for a prolonged period. To our knowledge, this is the first case report of an ocular side effect of raloxifene.

Observations: A 69-year-old female patient presented to our clinic for her routine eye check-up.

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Rationale: We describe a case of acute neovascularization of the iris after uneventful cataract surgery.

Patient Concerns: A 78-year-old man visited our clinic for cataract surgery and glaucoma management.

Diagnoses: The patient underwent bilateral laser iridotomy 4 years ago.

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Cogan's syndrome is a rare form of autoimmune vasculitis that manifests with ocular and audiovestibular symptoms. The clinical presentations of Cogan's syndrome can be classified as typical and atypical, and the auditory symptoms are classically similar to those seen in cases of Meniere's syndrome. Without treatment, Cogan's syndrome could become severe, resulting in sensorineural hearing loss in over 50% of patients.

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Preservative-free artificial tears eliminate the side effects of preservatives but are prone to microbial contamination. This study evaluates the incidence of microbial contaminations in single-use vials of preservative-free 0.1% hyaluronate artificial tears.

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This report describes a case of choroidal effusion after intravitreal brolucizumab injection for wet age-related macular degeneration (AMD). A 71-year-old Korean man with a history of wet AMD visited our clinic. On examination, the best-corrected distance visual acuity (BCVA) was 20/200 in the right eye.

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This report describes a case of acute uveitis following COVID-19 vaccination. A 21-year-old patient was referred to our department for decreased visual acuity and injection of the left eye. Two days prior, the patient received her second dose of the severe acute respiratory syndrome coronavirus 2 vaccine (BNT162b2, Pfizer-BioNTech).

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Previous studies have shown that menopausal hormone therapy in postmenopausal women results in a higher prevalence of age-related macular degeneration. This study aimed to evaluate the effects of menopause and patient factors on the development of age-related macular degeneration in Korean women. Data between 2011 and 2014 were collected from the Korean National Health Insurance database.

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We aimed to evaluate the effects of the coronavirus disease (COVID-19) pandemic on the Ophthalmology Department. This study was based on data collected between January 2019 and November 2021. We divided patients scheduled for eye care during pre-COVID-19 (January-December 2019), early COVID-19 (January-December 2020), and late COVID-19 (January-November 2021) periods.

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This report describes a case of Scheimpflug topography oriented adequate repositioning of a misaligned thick free flap after laser in situ keratomileusis (LASIK). A 24-year-old patient consulted for irregular astigmatism and disoriented free right eye flap. The patient previously underwent binocular LASIK at a private clinic.

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Purpose: To evaluate the effects of glycemic variability on the progression of diabetic retinopathy (DR) among individuals with Type 2 diabetes and to test the hypothesis that consistent glycemic control delays the progression of DR.

Methods: This retrospective study included 1,125 participants with a follow-up period of more than 5 years and more than 20 glucose laboratory test results. The hazard ratio of ≥3 steps of progression on the Early Treatment Diabetic Retinopathy Study person scale and progression to proliferative DR were assessed.

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This report describes a patient with bilateral endogenous candida chorioretinitis. The patient had a 2-day history of bilateral blurred vision. Fundus photography revealed multiple chorioretinal infiltrations in both eyes and a parafoveal hemorrhage in the left eye.

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To report long-term outcomes of intravitreal ceftazidime injection in patients with endogenous Klebsiella pneumoniae endophthalmitis (EKPE).This was a retrospective observational case study, including 7 eyes from 6 patients with EKPE. The medical records from January 2010 to December 2018 were reviewed.

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Purpose: To evaluate topographic changes in choroidal thickness during development of choroidal neovascularization (CNV) in treatment-naive age-related macular degeneration (AMD) and to test the value of such changes as a predictive tool of CNV development.

Methods: This retrospective cohort included 86 eyes that developed CNV from intermediate AMD, 43 eyes with intermediate AMD, and 36 eyes without AMD. Patients with intermediate AMD underwent spectral domain optical coherence tomography using enhanced depth imaging mode every 6 months until CNV was detected.

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The aim of this study was to identify any changes that occur in the retinal nerve fiber layer (RNFL) and ganglion cell-inner plexiform layer (GC-IPL) in patients with exudative age-related macular degeneration (AMD) during treatment with anti-vascular endothelial growth factor (VEGF) injections.Patients were enrolled in this retrospective study if they had exudative AMD, had received at least 3 injections of ranibizumab or aflibercept, and had a minimum of 12 months of follow-up. We analyzed the changes in the RNFL and GC-IPL using spectral-domain optical coherence tomography in rescan mode.

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This study aimed to characterise the distribution of choroidal thickness (CT) in diabetic retinopathy eyes, inside and outside of the vascular arcade, as well as at the fovea, using spectral-domain optical coherence tomography (OCT). Forty-nine healthy eyes, 80 diabetic retinopathy (DR) eyes (59 non-proliferative diabetic retinopathy (NPDR) eyes and 21 proliferative diabetic retinopathy (PDR) eyes) were examined with OCT to obtain nine horizontal lines (far superotemporal, near superotemporal, central, near inferotemporal, far inferotemporal, far superonasal, near superonasal, near inferonasal, far inferonasal) inside and outside of the vascular arcade. Nine points were chosen in 0.

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To describe a case of inflammatory neovascularization of the lens after open globe injury. Case report. A 57-year-old man presented with severe inflammation, posterior synechiae with traumatic cataract, and thick neovascularization of the intralenticular and anterior lens capsule after open globe injury in the left eye.

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Rationale: We report a case of haptic fracture of polyimide intraocular lens (IOL) and its dislocation after neodymium:YAG (Nd:YAG) laser capsulotomy. To the best of our knowledge, this is the first report of both the fracture and dislocation of the IOL after laser posterior capsulotomy.

Patient Concerns: A 78-year-old male was referred to our clinic with a history of decreased visual acuity after Nd:YAG laser posterior capsulotomy in the right eye.

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