Prevalence of color-vision deficiency among male high-school students
- Author:
Emerson M. Cruz
1
;
Herma Grace S. Cerdana
1
;
Ann Margaret B. Cabrera
1
;
Chanda B. Garcia
1
;
Evelyn T. Santos-Morabe
1
;
Ma. Lourdes R. Nañagas
1
Author Information
- Publication Type:Journal Article
- Keywords: Color blind; Color-vision deficiency; Ishihara; Farnsworth; Deutan; Protan; Tritan
- MeSH: Color Vision Defects
- From: Philippine Journal of Ophthalmology 2010;35(1):20-24
- CountryPhilippines
- Language:English
- Abstract: Objective This study determined the prevalence of color-vision deficiency among male high-school students in a public school. Methods Male high-school students were screened for color-vision deficiency using 6 plates of the Ishihara pseudoisochromatic plates. All students with one or more errors were reexamined at a later date with the full 15 Ishihara plates and the Farnsworth D15 (FD15) test. A detailed history was taken and an ocular examination was conducted. Students who identified less than 10 plates correctly on the FD15 were classified as color-deficient and underwent the Farnsworth Munsell 100 hue (FM 100) test. The results were statistically analyzed. Results A total of 1,258 male high-school students, aged 12 to 16 years, were included in the study, 122 of whom failed the screening test. Of these, 106 completed the 15 Ishihara plates. Sixty-five failed and were classified as color-visiondeficient, of which 64 (98%) were deutans. Deutan was also the most common deficiency determined using the FD15 (78.95%) and FM100 (44.19 %) hue tests. Conclusion The prevalence of color-vision deficiency among male students in a public high school was 5.17% (65/1,258). The most common deficiency was the deutan type.
- Full text:PJO 104.pdf
