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 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...

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...

purpose: to compare the effect of high dose intravenous corticosteroid therapy with placebo in the treatment of recent traumatic optic neuropathy (ton). methods: in a double masked-placebo controlled clinical trial, 31 eyes of 31 patients were randomly assigned into two groups. only patients with history of ophthalmic or head trauma within the past 7 days were included. unconscious patients, th...

purpose: to evaluate the effect of  patch therapy on visual acuity in adults with ametropic amblyopia. methods: this randomized clinical trial was performed on 66 patients with unilateral ametropic amblyopia aged 9 to 35 years reffered to a clinic in shahroud. the patients were randomly assigned to two groups. in the treatment group, based on the visual acuity of the amblyopic eye, 3-6 hours da...