Pixabay/Martin Slavoljubovski
09 May 2023
Scientists from Khalifa University in the United Arab Emirates have developed a prototype of contact lenses that could be used as an ocular aid by those with colour blindness and colour vision deficiency (CVD).
Writing in Macromolecular Materials and Engineering, the researchers describe the fabrication of a 3D-printed coloured contact lens for colour blindness management.
The contact lens works by blocking “problematic wavelengths of light” to enhance colour distinction.
The authors highlight that the proof-of-concept contact lens blocks 50% of light in the target wavelength.
To test the potential of the contact lens as a wearable optical aid for those with CVD, the scientists compare the optical performance of the contact lens with commercial products.
“The material properties, water content, and contact angle of the 3D-printed contact lenses were comparable to those of commercial contact lenses,” the authors shared.
They highlighted that the successful deployment of the contact lenses would ensure that patients with CVD have access to a low-cost, customisable, and effective wearable solution.
Writing in Macromolecular Materials and Engineering, the researchers describe the fabrication of a 3D-printed coloured contact lens for colour blindness management.
The contact lens works by blocking “problematic wavelengths of light” to enhance colour distinction.
The authors highlight that the proof-of-concept contact lens blocks 50% of light in the target wavelength.
To test the potential of the contact lens as a wearable optical aid for those with CVD, the scientists compare the optical performance of the contact lens with commercial products.
“The material properties, water content, and contact angle of the 3D-printed contact lenses were comparable to those of commercial contact lenses,” the authors shared.
They highlighted that the successful deployment of the contact lenses would ensure that patients with CVD have access to a low-cost, customisable, and effective wearable solution.
Comments (2)
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The ADP Consultancy12 May 2023
Very interesting, I have been prescribing contact lenses for CVD for several decades. I favour the lens originally invented by the late David Harris FBDO(Hons)CL an article explaining much more can be found on my web site https://adp-eyecare.co.uk/index.php/very-very-specialist-services/about-chromagen-contact-lenses-for-colour-vision-deficiency-cvd
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David Sculfor11 May 2023
It's disappointing to see them using the term "colour blind" since true monochromacy is very rare. PIC plates such as Ishihara were designed so that the figure and the surrounding dots are isochromatic, in other words the figure is camouflaged, especially for those with colour vision deficiency. Not surprisingly viewing them through a filter defeats the test, but that is not the same as improving every-day colour vision.
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