What to Do About Color Weakness When Renewing a C1 Driver's License After Six Years?
1 Answers
Drivers with color weakness can wear color-correcting glasses during the six-year license renewal and undergo the physical examination under sufficient lighting. Whether it's color weakness or myopia, the driver's license physical examination allows wearing glasses, so patients with color weakness can purchase corrective glasses from professional stores, which can enhance their perception of color contrast. During the examination, the more adequate the lighting, the more saturated the colors will appear, making it easier for individuals with color weakness to distinguish them. According to the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses," the renewal physical examination only requires applicants to not have red-green color blindness, with no restrictions on red-green color weakness. Additionally, the examination does not include a color weakness test. Color weakness, also known as color vision deficiency, can be understood as a mild form of color blindness where individuals can recognize colors but with reduced sensitivity. The most intuitive difference between the two is that color blindness means the inability to recognize colors, while color weakness means poorer color recognition ability—colors can only be clearly seen when they are highly saturated. The most common types are red weakness (Type A) and green weakness (Type B), with blue weakness being extremely rare.
