Which of the following conditions must a driver report during a vision examination?

Cataracts must be reported during a vision examination because they can significantly affect a person's visual acuity and overall ability to drive safely. Cataracts lead to clouding of the lens in the eye, which can cause blurred vision, glare, and difficulty with night driving. Since they can progress over time and dramatically impact vision quality, it is crucial for drivers to disclose this condition so that appropriate measures can be taken to ensure road safety.

In contrast, while strabismus, which is an eye misalignment, can affect depth perception and visual coordination, not all cases lead to a significant impairment in driving ability, hence they may not have the same reporting requirement as cataracts. Astigmatism is also a common refractive error that can usually be corrected with glasses or contact lenses and typically does not necessitate reporting unless it is severe. Seasonal allergies, while they may cause temporary discomfort or visual disturbances, do not directly impact vision to the extent that would require notification during a vision examination. These distinctions highlight why cataracts are specifically noted in the context of driving safety assessments.