نتایج جستجو برای: presenting visual acuity
تعداد نتایج: 487484 فیلتر نتایج به سال:
AIM The aim of the study was to describe the prevalence and visual outcomes of cataract surgery in an urban Asian population. METHODS This was a population-based study of 3280 Singapore Malays aged 40-80 years (response rate 78.7%). Participants had a standardised interview and comprehensive ocular examination. Poor post-operative visual outcome was defined as visual acuity </=20/60 in operat...
AIM Traumatic retinopathy presenting as acute macular neuroretinopathy (AMNR) is an uncommon disease causing paracentral scotomas after indirect trauma. METHODS We report on five patients (six eyes) with AMNR with a temporary reduction of visual acuity and persistent paracentral scotomas after indirect trauma. The findings were documented using multimodal imaging and the follow-up was up to 3...
Syphilis is a sexually transmitted infection caused by the spirochete Treponema pallidum. Ocular involvement can occur at any time, and it may affect 10% of patients in secondary stage, from 2% to 5% tertiary stage. Uveitis most common presentation ocular syphilis, affecting 0.4% 8% with systemic disease. Chorioretinitis posterior alteration. We present case 53-year-old male patient, presenting...
purpose: uncorrected visual acuity is the only variable measured in vision screening programs in many countries worldwide. the aim of this study was to calculate the sensitivity, specificity, and predictive value of the uncorrected visual acuity in the screening programs for the diagnosis of refractive errors. methods: in this cross-sectional study, of 4,157 students in the first year of primar...
PURPOSE To report an outbreak of endophthalmitis in three eyes of two patients following intravitreal methotrexate, caused by Ralstonia pickettii. DESIGN Retrospective, noncomparative, consecutive case series. METHODS Medical records and microbiology results of two patients who presented with acute endophthalmitis following intravitreal methotrexate injection in November 2013 were reviewed....
In 5 consecutive cases presenting between 2000 and 2001, Viscoat injected via a pars plana sclerotomy was used to support and levitate 5 posteriorly dislocated IOLs into the pupillary plane. All 5 IOLs had dislocated into the anterior vitreous. This technique permitted successful exchange or suture refixation of the dislocated IOLs through limbal incisions in all cases. Diabetic macular edema a...
OBJECTIVE To determine the causes of blindness and visual impairment in a population-based sample of older Americans. METHODS A random sample of 3821 residents of Salisbury, Md, between the ages of 65 and 84 years was identified from Medicare records. Sixty-six percent (2520 persons) agreed to undergo an eye examination; 26% of the participants were African American. The clinical examination ...
BACKGROUND/AIMS Microtropia is believed to be a static condition, in which accepted achievable levels of vision are those of 6/12-6/9 maximum, with the inability to achieve "normal" levels of stereopsis. The aim of this paper was to present the results of treatment of 30 consecutively presenting primary microtropes, and assess their outcomes using a more active treatment strategy than that conv...
Purpose We assessed changes in age-specific prevalence of refractive error at the time of starting school, by comparing preschool and school age cohorts in Shanghai, China. Methods A cross-sectional study was done in Jiading District, Shanghai during November and December 2013. We randomly selected 7 kindergartens and 7 primary schools, with probability proportionate to size. Chinese children...
OBJECTIVE This study was carried out to determine the prevalence and pattern of refractive error in patients presenting to a private hospital. MATERIALS AND METHODS Records of all patients who presented at the hospital from 2000 to 2009 with visual acuity (VA) of 6/9 or less and showed improvement in distance vision of one or more lines with refraction were reviewed. The eye with the better p...
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