What can double vision be attributed to?

Double vision, also known as diplopia, can indeed be attributed to the relaxation of eye muscles due to several factors, including fatigue, drugs, or alcohol. When the muscles controlling eye movements become fatigued or are affected by substances, they may not work in concert, leading to misalignment and resulting in the perception of two images instead of one. This mechanism is crucial to understand because it highlights how the body's functions can be disrupted by these factors, impacting vision.

In contrast, looking directly into bright headlights can cause temporary vision disturbances such as glare or difficulty seeing clearly, but it does not generally lead to double vision. Wearing glasses that are too strong can lead to discomfort or distortion of vision, but it typically does not cause the muscles to lose coordination, which is critical for proper alignment. Rapid eye blinking may result from irritation or fatigue but is more related to protecting the eyes than causing a misalignment of vision.