Publications by authors named "Kunavisarut P"

Purpose: To evaluate the anatomical and visual outcomes of patients with rhegmatogenous retinal detachment (RRD) who received primary repair by combined pars plana vitrectomy with scleral buckling (PPV/SB) or pars plana vitrectomy (PPV) alone by using a propensity analysis.

Patients And Methods: This study was a single center retrospective observational study. Medical records of patients who underwent surgical interventions between January 2013 and December 2019 were retrospectively reviewed.

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Giant retinal tear-associated rhegmatogenous retinal detachment (GRT-RRD) presents a significant surgical challenge. Trauma stands out as one of the risk factors. This retrospective case series aims to assess the outcomes of GRT-RRD patients treated with pars plana vitrectomy (PPV), distinguishing between non-trauma and blunt ocular trauma cases.

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Article Synopsis
  • Retained intraocular foreign bodies (IOFB) are a significant cause of visual impairment, with unique visual outcomes compared to other open globe injuries, particularly when not related to terrorism.
  • A study of 161 patients revealed that most injuries were caused by grass trimming and metallic objects, with a notable improvement in vision after treatment; the proportion of patients with poor vision dropped significantly.
  • The Ocular Trauma Score (OTS) was found to be a useful predictor of final visual outcomes, especially in higher categories, but there were inconsistencies in visual acuity in lower OTS groups, indicating the need for careful treatment decision-making.
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Purpose: To determine the characteristics, primary sources, pathogens, risk factors, and visual outcomes in patients with endogenous endophthalmitis (EE).

Methods: We performed a retrospective cohort study of 61 consecutive patients with EE (74 affected eyes) and reported on prevalence, clinical courses, prognostic factors and visual outcomes.

Results: Prevalence of EE was 5% of all patients with endophthalmitis.

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Purpose: To determine characteristics and factors associated with no vision survival (included no light perception, enucleation, and evisceration) following open globe injury (OGI) and to correlate the proportion of final vision to predictive values of ocular trauma score (OTS).

Patients And Methods: The medical records of consecutive patients diagnosed as OGI between January 2015 and December 2020 were retrospectively reviewed. Data collected included demographics, mechanisms and modes of injuries, ophthalmic presentations, managements, and visual outcomes at the final visit.

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Purpose: To report on the value of presence of pigmentation on central anterior lens capsule (PioLe) in HLA B27- associated anterior uveitis (HLA B27-AU).

Methods: 268 patients (320 eyes) with AU were reviewed. Two diagnostic models to predict probability of HLA-B27-AU were developed.

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Background: To evaluate anatomical and functional outcomes of patients with large submacular hemorrhage (SMH) who treated by pars plana vitrectomy (PPV) in combination with subretinal tissue plasminogen activator (TPA) injection, intraocular gas tamponade, and with additional post-operative interventions.

Methods: Medical records of 9 patients who presented with large SMH secondary to age-related macular degeneration (AMD) and underwent PPV, subretinal TPA injection, and gas tamponade at Chiang Mai university hospital between January 2012 and January 2020 were reviewed. Collected data included preoperative visual acuity (VA), SMH extent and duration, intraoperation and post-operation complications, post-operative anatomical and VA responses, and the need for administer post-operation additional treatments.

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Purpose: To determine accuracy and relative risk (RR) of posttreatment optical coherence tomography (OCT) features in identifying complete or incomplete polypoidal regression in polypoidal choroidal vasculopathy (PCV).

Design: Validity analysis.

Methods: Treatment-naive PCV eyes undergoing OCT and indocyanine green angiography (ICGA) at baseline and posttreatment were included.

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Purpose: To determine prevalence of probable polypoidal choroidal vasculopathy (PCV) among White patients with neovascular age-related macular degeneration (nAMD) using non-indocyanine green angiography (ICGA) criteria DESIGN: Multicenter, multinational, retrospective, cross-sectional study.

Methods: A total of 208 treatment-naive eyes from Hispanic and non-Hispanic White individuals diagnosed with nAMD were included. All underwent color fundus photography (CFP), optical coherence tomography (OCT), and fluorescein angiography (FFA).

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Introduction: The study aimed to determine a reference database of the thickness and intraocular thickness asymmetry of total retina, retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), and inner plexiform layer (IPL) in healthy Thai subjects measured by the Spectralis spectral-domain optical coherence tomography.

Methods: This cross-sectional study recruited the healthy subjects age ≥18 years, having spherical refraction within ±6 diopters and cylindrical refraction ±3 diopters, from a hospital's personnel and the people visiting the ophthalmology department. Only 1 eye of each subject was randomly selected for an analysis.

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Objectives: To evaluate the associations between anatomical changes and visual outcomes in patients with idiopathic epiretinal membrane (ERM).

Materials And Methods: We performed a prospective study of 130 consecutive idiopathic ERM patients and report their visual outcomes and the factors associated with visual outcome and anatomical changes.

Results: Of 130 eyes of 130 patients, 87 eyes underwent surgery, while the remaining 43 eyes were observed.

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Purpose: To evaluate the visual outcome and macular anatomic structures on spectral-domain optical coherence tomography (SD-OCT) of patients with epiretinal membrane (ERM) foveoschisis who underwent vitrectomy.

Methods: A retrospective cohort, interventional, case series.

Participants: Fourteen patients (14 eyes) with central vision loss from an ERM foveoschisis underwent vitrectomy at Chiang Mai University Hospital from 2017 to 2018 and had a follow-up period of 12 months.

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Background: To describe the epidemiology, characteristics, risk factors, and outcomes of post-traumatic endophthalmitis.

Main Body: Medical records of consecutive open globe injury patients admitted and primarily treated between January 2006 and December 2016 were retrospectively reviewed. Patients were defined as having or not having associated endophthalmitis.

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Purpose: To understand timing of complete polypoidal regression on indocyanine green angiography (ICGA) after aflibercept injections for polypoidal choroidal vasculopathy (PCV).

Design: Multicenter prospective study.

Participants: Adults with treatment-naïve PCV.

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Background: To explore the association of clinical characteristics and retinal microstructural features on optical coherence tomography in predicting 1-year visual response following intravitreal bevacizumab injections in eyes with visual impairment from center-involved diabetic macular edema (CI-DME).

Methods: Medical records of patients with visual impairment from CI-DME, who initiated intravitreal bevacizumab injections between Jan 2012 and Dec 2016 and were followed for a minimum of 12 months were retrospectively reviewed.

Results: The study included 226 eyes with a mean (SD) baseline visual acuity (VA) of 51.

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Introduction: The objective of this study was to explore visual and anatomical outcomes in patients who underwent intravitreal anti-vascular endothelial growth factor (anti-VEGF) injection for visual impairment from center-involved diabetic macular edema (CI-DME) in clinical practice.

Methods: Medical records of consecutive CI-DME patients who initiated treatment with intravitreal bevacizumab injection between January 2012 and December 2016 and were followed for at least 12 months were retrospectively reviewed. Visual and anatomical changes after treatment over a 36-month period were evaluated.

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Purpose: To determine characteristics of occupational-related open globe injury (OGI) in a tertiary referral centre within an agricultural activity endemic area.

Methods: The medical records of patients diagnosed as open globe injury received during work and admitted to Chiang Mai University Hospital, Thailand from January 2006 to December 2016, were retrospectively reviewed.

Results: Six hundred and fifteen patients were included in this analysis with a mean (SD) age of 44.

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Purpose: To investigate clinical baseline characteristics and optical coherence tomography biomarkers predicting visual loss during observation in eyes with diabetic macular oedema (DMO) and good baseline visual acuity (VA).

Methods: A sub-analysis of a 12-month, retrospective study, including patients with baseline VA ≤0.1 logMAR (≥20/25 Snellen) and centre-involving DMO.

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Purpose: To determine the characteristics of hospitalized eye injuries in Northern Thailand, a tertiary referral center.

Methods: The medical records of patients who sustained an eye injury and were admitted to the Department of Ophthalmology, Chiang Mai University, Thailand, from February 2015 to February 2016 were retrospectively reviewed. Demographics and characteristics of each injury were collected.

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Purpose: To determine the characteristics and epidemiology of open globe injury (OGI) in a third referral centre over 11 years.

Methods: The study was a retrospective observational study. The medical records of 978 OGI cases (a total of 998 eyes), admitted to Chiang Mai University Hospital, Thailand from January 2006 to December 2016, were reviewed.

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We report on a 22-years-old Thai male patient with congenital HIV infection. Due to his non-adherence to antiretroviral treatment he developed disseminated infection and was treated with intravenous amphotericin B. Despite this treatment, he presented with bilateral granulomatous anterior uveitis.

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: To report on ocular Vogt-Koyanagi-Harada (VKH)-like syndrome under vemurafenib treatment for metastatic melanoma.: A case report.: Description of clinical and imaging manifestations including fundus photography, fluorescein, and indocyanine green angiography.

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Purpose: To report characteristics and visual results in patients with PDR-associated complications following pars plana vitrectomy (PPV) in a tertiary center over an eight-year period.

Methods: Medical records of diabetic retinopathy patients receiving PPV between January 2007 and December 2014 for PDR-related complications were reviewed.

Results: A total of 890 consecutive PDR patients were included in the study.

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Importance: The use of indocyanine green angiography (ICGA) is a criterion standard for diagnosing polypoidal choroidal vasculopathy (PCV), an endemic and common cause of vision loss in Asian and African individuals that also presents in white individuals. However, the use of ICGA is expensive, invasive, and not always available at clinical centers. Therefore, knowing the value of certain features detected using fundus photography (FP), optical coherence tomography (OCT), and fluorescein angiography (FA) to diagnose PCV without ICGA could assist ophthalmologists to identify PCV when ICGA is not readily available.

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Aims: To describe and compare the functional and anatomical outcomes of untreated and treated diabetic macular edema (DME) in eyes with very good baseline visual acuity (VA) in a real-world setting.

Methods: A 12-month, retrospective, multicenter, observational cohort study, including DME patients with baseline visual acuity (VA) ≤ 0.1 logMAR (≥ 20/25 Snellen) and central subfield thickness (CST) > 250 µm with intra- and/or subretinal fluid seen on optical coherence tomography.

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