Although blind spot mirrors can expand the field of vision and reduce blind spots in rearview mirrors, their drawbacks should not be overlooked. Firstly, the convex mirror design causes distance distortion. For instance, an actual distance of one to two meters may appear as five to six meters in the mirror, potentially leading to misjudgment and increasing the risks associated with lane changes or overtaking. Secondly, improper installation may obstruct the original rearview mirror's field of view. For example, adjustable small round mirrors might interfere with normal observation due to angular misalignment, while flat mirrors, though less obstructive, still require careful positioning. Aesthetically, externally mounted mirrors may compromise the vehicle's overall appearance, and low-quality adhesive products are prone to detachment under high temperatures or vibration. Notably, the effectiveness of blind spot mirrors depends on vehicle type and driving conditions. They prove particularly useful in narrow passages or mountainous terrain, but for routine urban driving, proper adjustment of the original rearview mirrors combined with head checks often proves more dependable. Vehicle owners are advised to select high-quality products based on actual needs and prioritize improving driving techniques to address blind spot issues.
