Pilestone glasses for color blindness: the effect on chromatic discrimination in subjects with congenital color deficiency.

Background: The purpose of this study was to assess how well the Pilestone color vision glasses worked to improve test results for color deficiency based on the Ishihara color vision test.

Methods: Following their consent, sixteen people with color vision defects were enrolled. The Ishihara test was used to evaluate color vision. The incorrect scores were noted. After using Pilestone glasses for color vision impairment, the test was repeated.

Results: The median error score was 20 (18-20) on Ishihara. The median error scores were reduced to 8 (1-18.75). Ten patients were satisfied with result of intervention (62.5%) while (37.5%) were non-satisfied.

Conclusion: This study demonstrates that individuals were able to pass the color vision tests and that the Pilestone glasses which is the cheapest glasses in the market decreased error scores. Additionally, it might enhance the subjective look of the colorful things in the surrounding.