PMID: 18709958Aug 20, 2008Paper

Repeatability of ETDRS visual acuity measurement in children

Yan ke xue bao = Eye science
Zhi LinMingguang He

Abstract

To evaluate repeatability of the ETDRS log MAR visual acuity measurement in children and the relative influence factors. The children (n = 348) with visual acuity less than 0.5 (equal to 0.3 log unit) in either eye, or one tenth in children with normal visual acuity were chosen to do repeatable uncorrected VA measurement with Bland-Altman analysis and Kappa analysis using ETDRS acuity chart. The mean difference of visual acuity was 0.004 log +/- 0.07. There was a significant repeatability (k = 0.71) between two visual acuity examination. There were significant consistent results both on male and female patients (P = 0.845). A significant relationship was found between age and VA repeatability (P = 0.019). The VA repeatability could also be influenced by refractive error (P = 0.000). The acuity measurement in children with emmetropia (k = 0.82) had a higher repeatability than in the children with myopia (k = 0.66). The ETDRS visual acuity chart can provide a repeatable measure of visual acuity in children. It is recommended for clinic examination of children.

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Investigative Ophthalmology & Visual Science
Ruth E MannyCOMET Study Group
Investigative Ophthalmology & Visual Science
Praveen J PatelAdnan Tufail
Optometry and Vision Science : Official Publication of the American Academy of Optometry
Sotiris PlainisMiltiadis K Tsilimbaris
Optometry and Vision Science : Official Publication of the American Academy of Optometry
Neil McClenaghanLawrence R Stark
© 2022 Meta ULC. All rights reserved