Comparison Between the Instant Vision Assessment Device (IVAD) and the Focometer in Determining Refractive Error.
Background: Uncorrected refractive error is a common cause of preventable blindness. In developing countries, eye care professionals and refraction tools are in scarce supply to meet the great demand for correcting refractive error. This study aims to compare the Focometer and the Instant Vision Ass...
| Publicado en: | Optometry & Visual Performance Vol. 10; no. 4; pp. 199 - 204 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Optometric Extension Program
Dec2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=162451080&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 162451080 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 23253479 HOOW jtl: Optometry & Visual Performance issn: 23253479 maglogo: N pubinfo: dt: Dec2022 vid: 10 iid: 4 pid: 46881 pub: Optometric Extension Program place: Lutherville Timonium, Maryland artinfo: ui: 162451080 162451080 162451080 162451080 ppf: 199 ppct: 5 formats: tig: atl: Comparison Between the Instant Vision Assessment Device (IVAD) and the Focometer in Determining Refractive Error. aug: au: Tadaaki Tanabe Hing Yi Li Desmond Cheng Woo, George C. affil: Osaka Kyoiku University, Osaka, Japan sug: subj: Refractive Errors Diagnosis Ophthalmic Equipment and Supplies Utilization Equipment Reliability Vision Screening Human Japan Female Male Young Adult Adult Middle Age Blindness Rehabilitation Centers Consent (Research) Visual Acuity Paired T-Tests Regression Relative Risk Correlation Coefficient Descriptive Statistics Adult: 19-44 years Middle Aged: 45-64 years Female Male ab: Background: Uncorrected refractive error is a common cause of preventable blindness. In developing countries, eye care professionals and refraction tools are in scarce supply to meet the great demand for correcting refractive error. This study aims to compare the Focometer and the Instant Vision Assessment Device (IVAD) in obtaining subjective refractions. Methods: Self-refractions were performed with the Focometer and the IVAD, respectively, on the right eye of 27 subjects. The range of age was from 23 to 51 years, and the mean age was 37.4±7.8 years. Subjects were in a rehabilitation center in Osaka, Japan. The spherical equivalent refraction findings obtained with both instruments were compared. Paired t-test, regression analysis, and Bland-Altman plot were used for statistical analysis. Results: The mean spherical equivalent refraction and the standard error measured by the IVAD in the right eye was -2.00±0.46 D. With the Focometer, these were -1.89±0.47 D. The difference in the measurement and the standard error between the IVAD and the Focometer was -0.12±0.16 D, which was not statistically significant (p = 0.46, t = 0.75). The results obtained by the 2 instruments were highly correlated (R2 = 0.89; p = 0.00), and there was no systemic measurement difference between the two instruments. Conclusions: Refractive error findings obtained with the Focometer and the IVAD are comparable to each other. Both instruments are valid and useful tools for determining spherical equivalent refractive error. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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