Color faded glasses and quality of life improvement in color blindness
Luis A. Rodríguez-Gutiérrez, Irving A. Domínguez-Varela, Miguel A. Hernández-Delgado, Héctor J. Morales-Garza, Yolanda Macías-RodríguezAbstract
Background and Objectives:
To assess the results of a pre- and post-lens quality of life (QoL) questionnaire. Determine the effect of glasses with a faded red filter on the degree of severity of the Hardy, Rand and Rittler (HRR) Richmond test in color blind people and classify the type of dyschromatopsia and its severity.
Materials and Methods:
Observational-prospective study, carried out in patients with color blindness in a population of northern Mexico who used faded chromatic lenses. Patients ≥ 6 years old, with altered Ishihara test, Richmond HRR tests before and after 2 months of wearing the color faded glasses, were included.
Results:
51 individuals diagnosed with dyschromatopsia were included. Fifty (98%) were men and 1 was a woman (2%). The mean age was 27.1 years. When classifying the patients, the deutan group was 66.7% and the protan made up 31.4%. The severe degree was the most prevalent with 59.2%. The mean of incorrect results in HRR Richmond prior to wearing the lenses was 45%, after the use of the lenses a mean of 26% errors was obtained. The QoL improved after the use of lenses by 3.9 points according to the questionnaire.
Conclusions:
This tool made it possible for the majority of individuals, who were initially classified as having a severe degree of dyschromatopsia, after the use of lenses, to pass in a large percentage to a mild degree of dyschromatopsia and report improvement in QoL.