What visual condition requires corrective lenses for CMV driver certification?

The visual condition that necessitates the use of corrective lenses for commercial motor vehicle (CMV) driver certification is both myopia and hyperopia, which encompasses a range of common refractive errors affecting how individuals see.

Myopia, or nearsightedness, means that a person can see objects nearby clearly, but distant objects appear blurry. Conversely, hyperopia, or farsightedness, allows individuals to see distant objects more clearly, while close objects may appear fuzzy. In both cases, corrective lenses help focus light properly on the retina, improving visual clarity.

For CMV drivers, meeting specific visual acuity standards is critical due to the nature of their work, which involves operating large vehicles that require precise visual skills for safety. Therefore, if a driver is diagnosed with either myopia or hyperopia, they are required to use corrective lenses to fulfill the visual acuity requirements set forth by the Federal Motor Carrier Safety Administration (FMCSA). This ensures that drivers have the necessary vision to perform their duties safely, reducing the risk of accidents that could arise from impaired sight.

Astigmatism is another refractive error that may also require corrective lenses for some individuals, but the question specifically seeks to identify the need for correction in myopia and hyper