Myopia is seen as a benign condition which is a public health problem and must be given attention, concerning

visual problems, quality of life, and economic consequences. Nearly half of the world's blindness has been

caused by uncorrected refraction, with myopia occupying a high percentage of the group, meaning myopia is the

beginning of blindness. Uncorrected disturbances of visual acuity should be screened This study aims to develop

a method of screening for myopia in school children, resulting in twin card optotypes. The study was carried out

by diagnostic tests to analyze the sensitivity and specificity of twin card optotypes in screening for visual

impairment in schoolchildren using primary data from the visual test. The results of this study are twin card

optotypes which can easily be used in almost any condition, without requiring access to electricity, not causing

variables bullies in a row of questions on the same letter size. Faster time because it does not cause repeated

questions one paper one object. Installation does not require encoding on the wall, avoid memorization and avoid

factors from concerns about clinical validity and application accuracy. Conclusion Sensitivity of sharp vision

screening method Optotip twin card when compared with snoten optotip vision sharpening method which is

83.33% while specificity is 71.43 %.

Keywords: Screening, myopia, twin card optotypes