A special contact lens might be able to help people with color blindness.
A report to the European Society of Cataract and Refractive Surgeons described how a custom color spectrum-correcting lens may be able to alter the way that color blind people see color. The secret is in the digital diagnostic tool that determines the nature of patients’ color perception problems and helps inform the creation of custom lenses.
The special lenses were tried on 300 people in China. According to researcher Mitsugu Shimmyo, MD, “Our lenses rebalance color perception by filtering and redistributing the intensity of color spectrum.”
Source: http://www.osnsupersite.com