Publications by authors named "Brad Guo"
Our objectives were to establish normative quantitative values for dacryoscintigraphy in an older population and to evaluate the effect of lid massage. We conducted a prospective study of 44 eyes of 22 participants aged between 54-90 y that had no symptoms of epiphora and no clinical tear film instability, lid abnormality, lacrimal system impairment, or patent lacrimal duct on syringing. Dacryoscintigraphy was performed and interpreted by a single nuclear medicine physician.
View Article and Find Full Text PDFBackground And Aims: To report on the relationship between dietary intakes of a broad range of macronutrients and micronutrients, including antioxidants and fatty acids, with the presence of dry eye symptoms.
Methods: Population-based cross-sectional study of 1952 urban Sydney residents aged 60 years or greater. Participants completed a validated semi-quantitative 145-item food frequency questionnaire and a dry eye questionnaire.
Purpose: To determine the prevalence and risk factors for cataracts in the Vientiane Province.
Methods: We conducted a population-based study of 1264 participants aged ≥40 years of age from urban and rural areas of Vientiane Province. Data collection included demographic information, smoking history, body mass index, blood pressure, history of trauma and dilated lens examination using the World Health Organization WHO Simplified Cataract Grading System.
Aims: To determine the prevalence and causes of visual impairment and blindness in Vientiane Province, the Lao People's Democratic Republic (Lao PDR).
Methods: We conducted a population-based, cross-sectional study of 1264 participants aged 40 years and older from urban and rural areas of Vientiane Province. The ophthalmic examination included presenting and pinhole Snellen visual acuity (VA) with an illiterate E chart, slit-lamp examination of the anterior segment and dilated stereoscopic fundus examination.
Prevalence of Refractive Error in Vientiane Province, Lao People's Democratic Republic.
Ophthalmic Epidemiol
February 2023
Purpose: To determine the prevalence of adult refractive error and associated risk factors in the Vientiane Province of the Lao People's Democratic Republic.
Methods: Population-based, cross-sectional ophthalmic survey of individuals ≥ 40 years of age in Vientiane Province. Suitable refractive data was available in 1058 individuals.
Case Report: Recurrent Severe Uveitis Secondary to Primary Progressive Multiple Sclerosis Responsive to Ocrelizumab.
Ocul Immunol Inflamm
January 2023
Purpose: To report a case of severe, recurrent bilateral panuveitis secondary to primary progressive multiple sclerosis responsive to ocrelizumab infusions.
Observation: We describe the clinical progression of a 40 year old female who presented with a 3-week history of insidious bilateral visual loss that was clinically consistent with panuveitis. A diagnosis of multiple sclerosis was established with serial magnetic resonance imaging (MRI) that coincided with focal neurological events separated by time.
Aims: To determine the prevalence and subtypes of glaucoma in Vientiane Province.
Methods: We conducted a population-based study of 1264 participants aged ≥40 years of age from urban and rural areas of Vientiane Province. Data collection included Snellen visual acuity, slip lamp examination, tonometry, gonioscopy, dilated stereoscopic disc examination and perimetry.
Purpose: To describe the clinical presentation, anatomical and visual outcome of a series of patients in our department with complex retinal detachments, managed with vitrectomy and perfluorodecalin (PFD) for medium-term tamponade.
Study Design: Retrospective case series.
Methods: Retrospective analysis of the medical records of all patients in the last 6 years presenting with complex retinal detachment managed with vitrectomy where PFD was used as a medium-term tamponade.