5/2/2023 0 Comments Sensibilidad al contrastev2) para medir la FSC de cada grupo con el mismo iPad, comparándose los resultados obtenidos con los medidos con el test FACT. Se utilizaron diferentes versiones del ClinicCSF (.v1 y. Se distribuyeron 42 sujetos en dos grupos de 21 personas. Introducir una nueva aplicación ( ClinicCSF) para medir la Función de Sensibilidad al Contraste (FSC) con dispositivos de tableta, y compararla con el test Functional Acuity Contrast Test ( FACT). In addition, it is shown that the accurateness of a vision screening could be improved with the use of an appropriate psychophysical method. The new ClinicCSF application for iPad retina showed no significant differences with FACT test when the same contrast sensitivity steps were used. However, the 95% confidence intervals for mean differences between ClinicCSF and FACT were lower for the version which incorporated a staircase psychophysical method (ClinicCSF.v1), mainly for spatial frequencies of 6, 12 and 18 cpd. The best agreement with the FACT was found with the ClinicCSF.v2 with no significant differences in all the evaluated spatial frequencies. Statistically significant differences in CSF of both groups were found due to the change of the ClinicCSF version (p<0.05) while no differences were manifested with the use of the same FACT test. The agreements between ClinicCSF and FACT for spatial frequencies of 3, 6, 12 and 18 cycles per degree (cpd) were represented by Bland-Altman plots. v2) were used to measure the CSF of each group with the same iPad and the results were compared with those measured with the FACT. Different versions of the ClinicCSF (.v1 and. All rights reserved.To introduce a new application (ClinicCSF) to measure Contrast Sensitivity Function (CSF) with tablet devices, and to compare it against the Functional Acuity Contrast Test (FACT).Ī total of 42 subjects were arranged in two groups of 21 individuals. Los valores de CSF con el uso de lentillas son similares entre el valor basal y transcurridos tres meses de uso de lentillas.Ĭontrast sensitivity function Frecuencia espacial Función de sensibilidad al contraste Lentillas blandas Soft contact lens Spatial frequency Spectacles wear Uso de gafas.Ĭopyright © 2020 Spanish General Council of Optometry. La CSF es mejor con lentillas que con gafas. No se encontró diferencia de CSF entre las lentillas de hidrogel y silicona, ni al comparar el uso de lentillas diarias y mensuales (p > 0,05). La CSF fue más alta con el uso de lentillas, en comparación con el uso de gafas para las frecuencias espaciales de 3, 6 y 12 ciclos por grado (cpg) (p 0,05). También se investigó el efecto en el cambio de CSF de las modalidades de las lentillas y la modalidad de uso. Se evaluaron las diferencias en cuanto a CSF con gafas y lentillas al inicio, y los cambios de CSF transcurridos tres meses de uso de lentillas. Se volvió a medir la CSF el mismo día, y transcurridos tres meses de uso de lentillas. A continuación, se proporcionaron a los sujetos lentillas diarias desechables (Nelfilcon-A, Stenofilcon-A o Nesofilcon-A) en un ojo, y lentillas mensuales desechables (Lotrafilcon-B, Comfilcon-A or Balafilcon-A) en el otro ojo, utilizándose el mismo tipo de lentillas durante tres meses. La CSF se midió con gafas, utilizando el sistema CSV-1000 (VectorVision, Greenvile, OH). Investigar el efecto en la CSF de un periodo de uso de lentillas blandas de tres meses.Įn este estudio longitudinal prospectivo incluimos a cuarenta y siete sujetos miopes sin antecedentes de uso de lentillas. CSF values with CL are similar between baseline and after 3 months of lens wear.Ĭomparar la función de sensibilidad al contraste (CSF) con el uso de lentillas blandas y gafas. There was no difference in CSF between hydrogel and silicone CLs as well as when comparing daily with monthly wear CLs (p>0.05).ĬSF is better with CLs than with spectacles. The effect of lens materials and wearing modality on CSF change was also investigated.ĬSF was higher with CLs in comparison to the values with spectacles for spatial frequencies of 3, 6 and 12 cycles per degree (cpd) (p0.05). Differences in CSF with spectacles and CLs on baseline and changes to CSF after three months of CLs wear were assessed. CSF was measured again on the same day and after three months wearing CLs. Subsequently, subjects were fitted with a daily disposable lens (Nelfilcon-A, Stenofilcon-A or Nesofilcon-A) in one eye and a monthly disposable lens (Lotrafilcon-B, Comfilcon-A or Balafilcon-A) in the other eye and wore the same type of CLs for three months. CSF was measured with spectacles using the CSV-1000 (VectorVision, Greenvile, OH). To investigate the effect of a three-month period of SCL wear on CSF.įorty-seven myopic subjects with no history of contact lens (CL) wear were included in this longitudinal prospective study. To compare contrast sensitivity function (CSF) with soft contact lens (SCL) and spectacles wear.
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