In 2017, roughly how many million people were living with visual acuity loss?

• A. 2.0
• B. 5.5
• C. 9.0
• D. 7.08

Answer: (D)

Global burden of visual impairment is quantified by counting how many people have reduced vision using standardized thresholds for visual acuity and applying those to population data for a given year. In 2017, the rough estimate was about 7.08 million people living with visual acuity loss. This figure is the closest match among the options and reflects the scale of impairment worldwide, acknowledging that exact numbers vary with definitions (what VA counts as loss) and data sources. The underlying idea is that a sizable portion of the population experiences vision loss, often from conditions like uncorrected refractive error or cataract, which can be addressed with proper correction and treatment.