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 evaluate how sutureless amniotic membrane patches may affect visual functions in normal human eyes. DESIGN Prospective intervention study. METHODS Ten sets of sutureless amniotic membrane patch manufactured as PROKERA were inserted in one eye of six normal patients. Four sets (one each) were inserted in four patients, while six sets (three each) were inserted in two patients. Unc...

Please cite this article in press as: A. Sugiura et people of visual acuity and asthenopia, Display The abnormal contraction of ciliary muscles due to the performance of a near visual task for several hours causes various vision problems such as asthenopia and visual loss. However, these problems can be resolved by activating the muscles by alternately repeating negative and positive accommodat...

BACKGROUND To report a case of Serratia marcescens endophthalmitis after pterygium surgery using the bare sclera technique with mitomycin C (MMC). CASE PRESENTATION A 69-year-old male patient underwent pterygium excision surgery using the bare sclera technique and 0.02% MMC. The patient presented with decreased visual acuity and pain from the day after the operation. Trans pars plana vitrecto...

purpose: to determine factors that affect and predict final visual acuity, retinal attachment, and ocular survival after open-globe injuries. methods: one-hundred sixteen eyes with open globe injuries were evaluated longitudinally from september 2001to february 2004. age, sex, involved eye, best corrected visual acuity (bcva), afferent pupillary defect (apd), size and location of laceration, ca...

Purpose. To evaluate visual performance for near, intermediate, and distant vision; complaints of photic phenomena, and patient satisfaction with the new diffractive multifocal IOL used in eyes which underwent phacoemulsification. Methods. Two thousand and five hundred consecutive eyes undergoing Tecnis ZM900 multifocal IOL implantation were included in this retrospective analysis. The minimum ...

PURPOSE To investigate the relationship between the functional visual acuity (FVA) and useful field of view (UFOV) in elderly drivers and assess the usefulness of the FVA test to screen driving aptitude in elderly drivers. METHODS This study included 45 elderly drivers (31 men, 14 women; mean age, 68.1 years) and 30 younger drivers (26 men, 4 women; mean age, 34.2 years) who drive regularly. ...

Background Visual acuity, like many other health-related problems, does not have an equal distribution in terms of socio-economic factors. We conducted this study to estimate and decompose economic inequality in presenting visual acuity using two methods and to compare their results in a population aged 40-64 years in Shahroud, Iran.   Methods: The data of 5188 participants in the first phase o...

We would like to express our gratitude Matthew Burton and colleagues for the Commission on Global Eye Health (April, 2021),1Burton MJ Ramke J Marques AP et al.The Lancet Health: vision beyond 2020.Lancet Glob Health. 2021; 9: 489-551Summary Full Text PDF PubMed Scopus (50) Google Scholar which highlights magnitude of challenge. As a plea we mention glaucomas. feel this preventable cause blindne...

A variety of experiments were carried out in an attempt to improve stereoacuity for Navy divers working under water by providing additional peripheral visual stimulation. Acuity is most improved when the peripheral stimuli are at the same distance from the observer as the target. As the peripheral stimuli are moved closer to the observer than the target, their beneficial effects are decreased a...